Home / 126,486.38-174,348.20-85,637.48

Finding the Fourth Proportional to 126,486.38, 174,348.20 and 85,637.48

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Solution

The fourth proportional to 126,486.38, 174,348.20 and 85,637.48 is: 118,042.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,486.38 : 174,348.20 = 85,637.48 : x
  2. Step 2: Convert to fraction form
    126,486.38/174,348.20 = 85,637.48/x
  3. Step 3: Cross multiply
    126,486.38x = 174,348.20 × 85,637.48
  4. Step 4: Simplify right side
    126,486.38x = 14,930,739,190.61
  5. Step 5: Solve for x
    x = 14,930,739,190.61/126,486.38
  6. Step 6: Final answer
    x = 118,042.27

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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.