Home / 132,634.50-198,988.20-39,140.28

Finding the Fourth Proportional to 132,634.50, 198,988.20 and 39,140.28

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Solution

The fourth proportional to 132,634.50, 198,988.20 and 39,140.28 is: 58,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,634.50 : 198,988.20 = 39,140.28 : x
  2. Step 2: Convert to fraction form
    132,634.50/198,988.20 = 39,140.28/x
  3. Step 3: Cross multiply
    132,634.50x = 198,988.20 × 39,140.28
  4. Step 4: Simplify right side
    132,634.50x = 7,788,453,864.70
  5. Step 5: Solve for x
    x = 7,788,453,864.70/132,634.50
  6. Step 6: Final answer
    x = 58,721.18

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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.