Home / 147,126.20-220,170.90-102,543.80

Finding the Fourth Proportional to 147,126.20, 220,170.90 and 102,543.80

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Solution

The fourth proportional to 147,126.20, 220,170.90 and 102,543.80 is: 153,454.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,126.20 : 220,170.90 = 102,543.80 : x
  2. Step 2: Convert to fraction form
    147,126.20/220,170.90 = 102,543.80/x
  3. Step 3: Cross multiply
    147,126.20x = 220,170.90 × 102,543.80
  4. Step 4: Simplify right side
    147,126.20x = 22,577,160,735.42
  5. Step 5: Solve for x
    x = 22,577,160,735.42/147,126.20
  6. Step 6: Final answer
    x = 153,454.39

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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.