Home / 96,343.20-144,428.40-85,845.60

Finding the Fourth Proportional to 96,343.20, 144,428.40 and 85,845.60

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Solution

The fourth proportional to 96,343.20, 144,428.40 and 85,845.60 is: 128,691.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,343.20 : 144,428.40 = 85,845.60 : x
  2. Step 2: Convert to fraction form
    96,343.20/144,428.40 = 85,845.60/x
  3. Step 3: Cross multiply
    96,343.20x = 144,428.40 × 85,845.60
  4. Step 4: Simplify right side
    96,343.20x = 12,398,542,655.04
  5. Step 5: Solve for x
    x = 12,398,542,655.04/96,343.20
  6. Step 6: Final answer
    x = 128,691.41

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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.