Home / 83,180.12-124,877.42-71,409.53

Finding the Fourth Proportional to 83,180.12, 124,877.42 and 71,409.53

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Solution

The fourth proportional to 83,180.12, 124,877.42 and 71,409.53 is: 107,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,180.12 : 124,877.42 = 71,409.53 : x
  2. Step 2: Convert to fraction form
    83,180.12/124,877.42 = 71,409.53/x
  3. Step 3: Cross multiply
    83,180.12x = 124,877.42 × 71,409.53
  4. Step 4: Simplify right side
    83,180.12x = 8,917,436,888.38
  5. Step 5: Solve for x
    x = 8,917,436,888.38/83,180.12
  6. Step 6: Final answer
    x = 107,206.35

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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.