Home / 90,652.17-136,076.67-66,885.15

Finding the Fourth Proportional to 90,652.17, 136,076.67 and 66,885.15

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Solution

The fourth proportional to 90,652.17, 136,076.67 and 66,885.15 is: 100,400.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,652.17 : 136,076.67 = 66,885.15 : x
  2. Step 2: Convert to fraction form
    90,652.17/136,076.67 = 66,885.15/x
  3. Step 3: Cross multiply
    90,652.17x = 136,076.67 × 66,885.15
  4. Step 4: Simplify right side
    90,652.17x = 9,101,508,484.45
  5. Step 5: Solve for x
    x = 9,101,508,484.45/90,652.17
  6. Step 6: Final answer
    x = 100,400.34

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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.