Home / 83,237.12-124,839.38-69,286.76

Finding the Fourth Proportional to 83,237.12, 124,839.38 and 69,286.76

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Solution

The fourth proportional to 83,237.12, 124,839.38 and 69,286.76 is: 103,916.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,237.12 : 124,839.38 = 69,286.76 : x
  2. Step 2: Convert to fraction form
    83,237.12/124,839.38 = 69,286.76/x
  3. Step 3: Cross multiply
    83,237.12x = 124,839.38 × 69,286.76
  4. Step 4: Simplify right side
    83,237.12x = 8,649,715,709.63
  5. Step 5: Solve for x
    x = 8,649,715,709.63/83,237.12
  6. Step 6: Final answer
    x = 103,916.57

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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.