Home / 134,845.30-202,324.65-72,442.90

Finding the Fourth Proportional to 134,845.30, 202,324.65 and 72,442.90

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Solution

The fourth proportional to 134,845.30, 202,324.65 and 72,442.90 is: 108,694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,845.30 : 202,324.65 = 72,442.90 : x
  2. Step 2: Convert to fraction form
    134,845.30/202,324.65 = 72,442.90/x
  3. Step 3: Cross multiply
    134,845.30x = 202,324.65 × 72,442.90
  4. Step 4: Simplify right side
    134,845.30x = 14,656,984,387.49
  5. Step 5: Solve for x
    x = 14,656,984,387.49/134,845.30
  6. Step 6: Final answer
    x = 108,694.81

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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.