Home / 156,635.03-216,156.53-85,015.07

Finding the Fourth Proportional to 156,635.03, 216,156.53 and 85,015.07

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Solution

The fourth proportional to 156,635.03, 216,156.53 and 85,015.07 is: 117,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635.03 : 216,156.53 = 85,015.07 : x
  2. Step 2: Convert to fraction form
    156,635.03/216,156.53 = 85,015.07/x
  3. Step 3: Cross multiply
    156,635.03x = 216,156.53 × 85,015.07
  4. Step 4: Simplify right side
    156,635.03x = 18,376,561,023.05
  5. Step 5: Solve for x
    x = 18,376,561,023.05/156,635.03
  6. Step 6: Final answer
    x = 117,320.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.