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Finding the Fourth Proportional to 136,591.38, 188,526.29 and 88,761.69

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Solution

The fourth proportional to 136,591.38, 188,526.29 and 88,761.69 is: 122,510.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,591.38 : 188,526.29 = 88,761.69 : x
  2. Step 2: Convert to fraction form
    136,591.38/188,526.29 = 88,761.69/x
  3. Step 3: Cross multiply
    136,591.38x = 188,526.29 × 88,761.69
  4. Step 4: Simplify right side
    136,591.38x = 16,733,911,666.02
  5. Step 5: Solve for x
    x = 16,733,911,666.02/136,591.38
  6. Step 6: Final answer
    x = 122,510.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.