Home / 387,882.12-581,822.22-107,398.44

Finding the Fourth Proportional to 387,882.12, 581,822.22 and 107,398.44

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Solution

The fourth proportional to 387,882.12, 581,822.22 and 107,398.44 is: 161,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,882.12 : 581,822.22 = 107,398.44 : x
  2. Step 2: Convert to fraction form
    387,882.12/581,822.22 = 107,398.44/x
  3. Step 3: Cross multiply
    387,882.12x = 581,822.22 × 107,398.44
  4. Step 4: Simplify right side
    387,882.12x = 62,486,798,785.34
  5. Step 5: Solve for x
    x = 62,486,798,785.34/387,882.12
  6. Step 6: Final answer
    x = 161,097.39

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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.