Home / 126,002.40-188,566.20-115,504.80

Finding the Fourth Proportional to 126,002.40, 188,566.20 and 115,504.80

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Solution

The fourth proportional to 126,002.40, 188,566.20 and 115,504.80 is: 172,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,002.40 : 188,566.20 = 115,504.80 : x
  2. Step 2: Convert to fraction form
    126,002.40/188,566.20 = 115,504.80/x
  3. Step 3: Cross multiply
    126,002.40x = 188,566.20 × 115,504.80
  4. Step 4: Simplify right side
    126,002.40x = 21,780,301,217.76
  5. Step 5: Solve for x
    x = 21,780,301,217.76/126,002.40
  6. Step 6: Final answer
    x = 172,856.24

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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.