Home / 132,006.39-197,722.85-81,250.71

Finding the Fourth Proportional to 132,006.39, 197,722.85 and 81,250.71

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Solution

The fourth proportional to 132,006.39, 197,722.85 and 81,250.71 is: 121,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,006.39 : 197,722.85 = 81,250.71 : x
  2. Step 2: Convert to fraction form
    132,006.39/197,722.85 = 81,250.71/x
  3. Step 3: Cross multiply
    132,006.39x = 197,722.85 × 81,250.71
  4. Step 4: Simplify right side
    132,006.39x = 16,065,121,539.47
  5. Step 5: Solve for x
    x = 16,065,121,539.47/132,006.39
  6. Step 6: Final answer
    x = 121,699.57

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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.