Home / 139,774.80-192,862.97-82,432.19

Finding the Fourth Proportional to 139,774.80, 192,862.97 and 82,432.19

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Solution

The fourth proportional to 139,774.80, 192,862.97 and 82,432.19 is: 113,740.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,774.80 : 192,862.97 = 82,432.19 : x
  2. Step 2: Convert to fraction form
    139,774.80/192,862.97 = 82,432.19/x
  3. Step 3: Cross multiply
    139,774.80x = 192,862.97 × 82,432.19
  4. Step 4: Simplify right side
    139,774.80x = 15,898,115,610.53
  5. Step 5: Solve for x
    x = 15,898,115,610.53/139,774.80
  6. Step 6: Final answer
    x = 113,740.93

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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.