Home / 387,929.64-581,894.46-107,446.86

Finding the Fourth Proportional to 387,929.64, 581,894.46 and 107,446.86

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Solution

The fourth proportional to 387,929.64, 581,894.46 and 107,446.86 is: 161,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,929.64 : 581,894.46 = 107,446.86 : x
  2. Step 2: Convert to fraction form
    387,929.64/581,894.46 = 107,446.86/x
  3. Step 3: Cross multiply
    387,929.64x = 581,894.46 × 107,446.86
  4. Step 4: Simplify right side
    387,929.64x = 62,522,732,578.40
  5. Step 5: Solve for x
    x = 62,522,732,578.40/387,929.64
  6. Step 6: Final answer
    x = 161,170.29

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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.