Home / 126,841.10-175,042.00-76,530.38

Finding the Fourth Proportional to 126,841.10, 175,042.00 and 76,530.38

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Solution

The fourth proportional to 126,841.10, 175,042.00 and 76,530.38 is: 105,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,841.10 : 175,042.00 = 76,530.38 : x
  2. Step 2: Convert to fraction form
    126,841.10/175,042.00 = 76,530.38/x
  3. Step 3: Cross multiply
    126,841.10x = 175,042.00 × 76,530.38
  4. Step 4: Simplify right side
    126,841.10x = 13,396,029,709.42
  5. Step 5: Solve for x
    x = 13,396,029,709.42/126,841.10
  6. Step 6: Final answer
    x = 105,612.69

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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.