Home / 124,842.52-172,286.76-71,129.80

Finding the Fourth Proportional to 124,842.52, 172,286.76 and 71,129.80

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Solution

The fourth proportional to 124,842.52, 172,286.76 and 71,129.80 is: 98,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,842.52 : 172,286.76 = 71,129.80 : x
  2. Step 2: Convert to fraction form
    124,842.52/172,286.76 = 71,129.80/x
  3. Step 3: Cross multiply
    124,842.52x = 172,286.76 × 71,129.80
  4. Step 4: Simplify right side
    124,842.52x = 12,254,722,781.45
  5. Step 5: Solve for x
    x = 12,254,722,781.45/124,842.52
  6. Step 6: Final answer
    x = 98,161.45

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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.