Home / 139,354.83-192,310.02-75,691.26

Finding the Fourth Proportional to 139,354.83, 192,310.02 and 75,691.26

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Solution

The fourth proportional to 139,354.83, 192,310.02 and 75,691.26 is: 104,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,354.83 : 192,310.02 = 75,691.26 : x
  2. Step 2: Convert to fraction form
    139,354.83/192,310.02 = 75,691.26/x
  3. Step 3: Cross multiply
    139,354.83x = 192,310.02 × 75,691.26
  4. Step 4: Simplify right side
    139,354.83x = 14,556,187,724.43
  5. Step 5: Solve for x
    x = 14,556,187,724.43/139,354.83
  6. Step 6: Final answer
    x = 104,454.13

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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.