Home / 126,841.22-175,042.17-76,530.50

Finding the Fourth Proportional to 126,841.22, 175,042.17 and 76,530.50

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Solution

The fourth proportional to 126,841.22, 175,042.17 and 76,530.50 is: 105,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,841.22 : 175,042.17 = 76,530.50 : x
  2. Step 2: Convert to fraction form
    126,841.22/175,042.17 = 76,530.50/x
  3. Step 3: Cross multiply
    126,841.22x = 175,042.17 × 76,530.50
  4. Step 4: Simplify right side
    126,841.22x = 13,396,064,791.19
  5. Step 5: Solve for x
    x = 13,396,064,791.19/126,841.22
  6. Step 6: Final answer
    x = 105,612.87

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1.5x scale

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.