Home / 121,356.38-182,116.54-42,471.28

Finding the Fourth Proportional to 121,356.38, 182,116.54 and 42,471.28

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Solution

The fourth proportional to 121,356.38, 182,116.54 and 42,471.28 is: 63,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,356.38 : 182,116.54 = 42,471.28 : x
  2. Step 2: Convert to fraction form
    121,356.38/182,116.54 = 42,471.28/x
  3. Step 3: Cross multiply
    121,356.38x = 182,116.54 × 42,471.28
  4. Step 4: Simplify right side
    121,356.38x = 7,734,722,562.97
  5. Step 5: Solve for x
    x = 7,734,722,562.97/121,356.38
  6. Step 6: Final answer
    x = 63,735.61

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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.