Home / 96,771,146.40-145,156,719.60-87,215,997.60

Finding the Fourth Proportional to 96,771,146.40, 145,156,719.60 and 87,215,997.60

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Solution

The fourth proportional to 96,771,146.40, 145,156,719.60 and 87,215,997.60 is: 130,823,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,771,146.40 : 145,156,719.60 = 87,215,997.60 : x
  2. Step 2: Convert to fraction form
    96,771,146.40/145,156,719.60 = 87,215,997.60/x
  3. Step 3: Cross multiply
    96,771,146.40x = 145,156,719.60 × 87,215,997.60
  4. Step 4: Simplify right side
    96,771,146.40x = 12,659,988,108,257,472
  5. Step 5: Solve for x
    x = 12,659,988,108,257,472/96,771,146.40
  6. Step 6: Final answer
    x = 130,823,996.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.