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Finding the Fourth Proportional to 147,177.60, 220,766.40 and 88,128.60

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Solution

The fourth proportional to 147,177.60, 220,766.40 and 88,128.60 is: 132,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,177.60 : 220,766.40 = 88,128.60 : x
  2. Step 2: Convert to fraction form
    147,177.60/220,766.40 = 88,128.60/x
  3. Step 3: Cross multiply
    147,177.60x = 220,766.40 × 88,128.60
  4. Step 4: Simplify right side
    147,177.60x = 19,455,833,759.04
  5. Step 5: Solve for x
    x = 19,455,833,759.04/147,177.60
  6. Step 6: Final answer
    x = 132,192.90

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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.