Home / 387,780.15-581,683.19-107,273.91

Finding the Fourth Proportional to 387,780.15, 581,683.19 and 107,273.91

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Solution

The fourth proportional to 387,780.15, 581,683.19 and 107,273.91 is: 160,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,780.15 : 581,683.19 = 107,273.91 : x
  2. Step 2: Convert to fraction form
    387,780.15/581,683.19 = 107,273.91/x
  3. Step 3: Cross multiply
    387,780.15x = 581,683.19 × 107,273.91
  4. Step 4: Simplify right side
    387,780.15x = 62,399,429,636.20
  5. Step 5: Solve for x
    x = 62,399,429,636.20/387,780.15
  6. Step 6: Final answer
    x = 160,914.45

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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.