Home / 99,387.68-137,151.04-54,065.72

Finding the Fourth Proportional to 99,387.68, 137,151.04 and 54,065.72

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Solution

The fourth proportional to 99,387.68, 137,151.04 and 54,065.72 is: 74,608.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.68 : 137,151.04 = 54,065.72 : x
  2. Step 2: Convert to fraction form
    99,387.68/137,151.04 = 54,065.72/x
  3. Step 3: Cross multiply
    99,387.68x = 137,151.04 × 54,065.72
  4. Step 4: Simplify right side
    99,387.68x = 7,415,169,726.35
  5. Step 5: Solve for x
    x = 7,415,169,726.35/99,387.68
  6. Step 6: Final answer
    x = 74,608.54

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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.