Home / 126,514.72-174,449.04-103,472.80

Finding the Fourth Proportional to 126,514.72, 174,449.04 and 103,472.80

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Solution

The fourth proportional to 126,514.72, 174,449.04 and 103,472.80 is: 142,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,514.72 : 174,449.04 = 103,472.80 : x
  2. Step 2: Convert to fraction form
    126,514.72/174,449.04 = 103,472.80/x
  3. Step 3: Cross multiply
    126,514.72x = 174,449.04 × 103,472.80
  4. Step 4: Simplify right side
    126,514.72x = 18,050,730,626.11
  5. Step 5: Solve for x
    x = 18,050,730,626.11/126,514.72
  6. Step 6: Final answer
    x = 142,676.92

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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.