Home / 387,812.02-581,727.75-107,331.70

Finding the Fourth Proportional to 387,812.02, 581,727.75 and 107,331.70

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Solution

The fourth proportional to 387,812.02, 581,727.75 and 107,331.70 is: 161,000.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,812.02 : 581,727.75 = 107,331.70 : x
  2. Step 2: Convert to fraction form
    387,812.02/581,727.75 = 107,331.70/x
  3. Step 3: Cross multiply
    387,812.02x = 581,727.75 × 107,331.70
  4. Step 4: Simplify right side
    387,812.02x = 62,437,828,344.68
  5. Step 5: Solve for x
    x = 62,437,828,344.68/387,812.02
  6. Step 6: Final answer
    x = 161,000.24

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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.