Home / 125,627.10-188,440.65-108,519.90

Finding the Fourth Proportional to 125,627.10, 188,440.65 and 108,519.90

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Solution

The fourth proportional to 125,627.10, 188,440.65 and 108,519.90 is: 162,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,627.10 : 188,440.65 = 108,519.90 : x
  2. Step 2: Convert to fraction form
    125,627.10/188,440.65 = 108,519.90/x
  3. Step 3: Cross multiply
    125,627.10x = 188,440.65 × 108,519.90
  4. Step 4: Simplify right side
    125,627.10x = 20,449,560,493.94
  5. Step 5: Solve for x
    x = 20,449,560,493.94/125,627.10
  6. Step 6: Final answer
    x = 162,779.85

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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.