Home / 132,640.31-198,996.95-39,146.06

Finding the Fourth Proportional to 132,640.31, 198,996.95 and 39,146.06

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Solution

The fourth proportional to 132,640.31, 198,996.95 and 39,146.06 is: 58,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.31 : 198,996.95 = 39,146.06 : x
  2. Step 2: Convert to fraction form
    132,640.31/198,996.95 = 39,146.06/x
  3. Step 3: Cross multiply
    132,640.31x = 198,996.95 × 39,146.06
  4. Step 4: Simplify right side
    132,640.31x = 7,789,947,139.87
  5. Step 5: Solve for x
    x = 7,789,947,139.87/132,640.31
  6. Step 6: Final answer
    x = 58,729.86

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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.