Home / 99,864.65-137,812.50-54,542.66

Finding the Fourth Proportional to 99,864.65, 137,812.50 and 54,542.66

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Solution

The fourth proportional to 99,864.65, 137,812.50 and 54,542.66 is: 75,268.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864.65 : 137,812.50 = 54,542.66 : x
  2. Step 2: Convert to fraction form
    99,864.65/137,812.50 = 54,542.66/x
  3. Step 3: Cross multiply
    99,864.65x = 137,812.50 × 54,542.66
  4. Step 4: Simplify right side
    99,864.65x = 7,516,659,642.19
  5. Step 5: Solve for x
    x = 7,516,659,642.19/99,864.65
  6. Step 6: Final answer
    x = 75,268.48

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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.