Home / 104,304.10-156,456.15-100,221.70

Finding the Fourth Proportional to 104,304.10, 156,456.15 and 100,221.70

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Solution

The fourth proportional to 104,304.10, 156,456.15 and 100,221.70 is: 150,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,304.10 : 156,456.15 = 100,221.70 : x
  2. Step 2: Convert to fraction form
    104,304.10/156,456.15 = 100,221.70/x
  3. Step 3: Cross multiply
    104,304.10x = 156,456.15 × 100,221.70
  4. Step 4: Simplify right side
    104,304.10x = 15,680,301,328.46
  5. Step 5: Solve for x
    x = 15,680,301,328.46/104,304.10
  6. Step 6: Final answer
    x = 150,332.55

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1.5x scale

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.