Home / 124,320.28-186,479.05-74,414.31

Finding the Fourth Proportional to 124,320.28, 186,479.05 and 74,414.31

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Solution

The fourth proportional to 124,320.28, 186,479.05 and 74,414.31 is: 111,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,320.28 : 186,479.05 = 74,414.31 : x
  2. Step 2: Convert to fraction form
    124,320.28/186,479.05 = 74,414.31/x
  3. Step 3: Cross multiply
    124,320.28x = 186,479.05 × 74,414.31
  4. Step 4: Simplify right side
    124,320.28x = 13,876,709,182.97
  5. Step 5: Solve for x
    x = 13,876,709,182.97/124,320.28
  6. Step 6: Final answer
    x = 111,620.64

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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.