Home / 147,630.90-221,446.35-100,391.70

Finding the Fourth Proportional to 147,630.90, 221,446.35 and 100,391.70

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Solution

The fourth proportional to 147,630.90, 221,446.35 and 100,391.70 is: 150,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,630.90 : 221,446.35 = 100,391.70 : x
  2. Step 2: Convert to fraction form
    147,630.90/221,446.35 = 100,391.70/x
  3. Step 3: Cross multiply
    147,630.90x = 221,446.35 × 100,391.70
  4. Step 4: Simplify right side
    147,630.90x = 22,231,375,535.30
  5. Step 5: Solve for x
    x = 22,231,375,535.30/147,630.90
  6. Step 6: Final answer
    x = 150,587.55

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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.