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Finding the Fourth Proportional to 101,286.40, 151,710.90 and 88,164.40

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Solution

The fourth proportional to 101,286.40, 151,710.90 and 88,164.40 is: 132,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,286.40 : 151,710.90 = 88,164.40 : x
  2. Step 2: Convert to fraction form
    101,286.40/151,710.90 = 88,164.40/x
  3. Step 3: Cross multiply
    101,286.40x = 151,710.90 × 88,164.40
  4. Step 4: Simplify right side
    101,286.40x = 13,375,500,471.96
  5. Step 5: Solve for x
    x = 13,375,500,471.96/101,286.40
  6. Step 6: Final answer
    x = 132,056.23

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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.