Home / 83,278.59-114,938.97-80,510.61

Finding the Fourth Proportional to 83,278.59, 114,938.97 and 80,510.61

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Solution

The fourth proportional to 83,278.59, 114,938.97 and 80,510.61 is: 111,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,278.59 : 114,938.97 = 80,510.61 : x
  2. Step 2: Convert to fraction form
    83,278.59/114,938.97 = 80,510.61/x
  3. Step 3: Cross multiply
    83,278.59x = 114,938.97 × 80,510.61
  4. Step 4: Simplify right side
    83,278.59x = 9,253,806,587.47
  5. Step 5: Solve for x
    x = 9,253,806,587.47/83,278.59
  6. Step 6: Final answer
    x = 111,118.68

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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.