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Finding the Fourth Proportional to 101,171.20, 151,411.20 and 88,729.60

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Solution

The fourth proportional to 101,171.20, 151,411.20 and 88,729.60 is: 132,791.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,171.20 : 151,411.20 = 88,729.60 : x
  2. Step 2: Convert to fraction form
    101,171.20/151,411.20 = 88,729.60/x
  3. Step 3: Cross multiply
    101,171.20x = 151,411.20 × 88,729.60
  4. Step 4: Simplify right side
    101,171.20x = 13,434,655,211.52
  5. Step 5: Solve for x
    x = 13,434,655,211.52/101,171.20
  6. Step 6: Final answer
    x = 132,791.30

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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.