Home / 132,876.91-183,371.19-72,447.97

Finding the Fourth Proportional to 132,876.91, 183,371.19 and 72,447.97

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Solution

The fourth proportional to 132,876.91, 183,371.19 and 72,447.97 is: 99,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,876.91 : 183,371.19 = 72,447.97 : x
  2. Step 2: Convert to fraction form
    132,876.91/183,371.19 = 72,447.97/x
  3. Step 3: Cross multiply
    132,876.91x = 183,371.19 × 72,447.97
  4. Step 4: Simplify right side
    132,876.91x = 13,284,870,493.22
  5. Step 5: Solve for x
    x = 13,284,870,493.22/132,876.91
  6. Step 6: Final answer
    x = 99,978.78

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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.