Home / 165,221.10-247,831.65-156,691.80

Finding the Fourth Proportional to 165,221.10, 247,831.65 and 156,691.80

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Solution

The fourth proportional to 165,221.10, 247,831.65 and 156,691.80 is: 235,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,221.10 : 247,831.65 = 156,691.80 : x
  2. Step 2: Convert to fraction form
    165,221.10/247,831.65 = 156,691.80/x
  3. Step 3: Cross multiply
    165,221.10x = 247,831.65 × 156,691.80
  4. Step 4: Simplify right side
    165,221.10x = 38,833,187,335.47
  5. Step 5: Solve for x
    x = 38,833,187,335.47/165,221.10
  6. Step 6: Final answer
    x = 235,037.70

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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.