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Finding the Fourth Proportional to 147,000.20, 220,767.60 and 87,951.20

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Solution

The fourth proportional to 147,000.20, 220,767.60 and 87,951.20 is: 132,086.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,000.20 : 220,767.60 = 87,951.20 : x
  2. Step 2: Convert to fraction form
    147,000.20/220,767.60 = 87,951.20/x
  3. Step 3: Cross multiply
    147,000.20x = 220,767.60 × 87,951.20
  4. Step 4: Simplify right side
    147,000.20x = 19,416,775,341.12
  5. Step 5: Solve for x
    x = 19,416,775,341.12/147,000.20
  6. Step 6: Final answer
    x = 132,086.73

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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.