Home / 387,787.50-581,681.25-107,304.75

Finding the Fourth Proportional to 387,787.50, 581,681.25 and 107,304.75

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Solution

The fourth proportional to 387,787.50, 581,681.25 and 107,304.75 is: 160,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,787.50 : 581,681.25 = 107,304.75 : x
  2. Step 2: Convert to fraction form
    387,787.50/581,681.25 = 107,304.75/x
  3. Step 3: Cross multiply
    387,787.50x = 581,681.25 × 107,304.75
  4. Step 4: Simplify right side
    387,787.50x = 62,417,161,110.94
  5. Step 5: Solve for x
    x = 62,417,161,110.94/387,787.50
  6. Step 6: Final answer
    x = 160,957.13

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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.