Home / 124,855.52-172,304.76-71,142.80

Finding the Fourth Proportional to 124,855.52, 172,304.76 and 71,142.80

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Solution

The fourth proportional to 124,855.52, 172,304.76 and 71,142.80 is: 98,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.52 : 172,304.76 = 71,142.80 : x
  2. Step 2: Convert to fraction form
    124,855.52/172,304.76 = 71,142.80/x
  3. Step 3: Cross multiply
    124,855.52x = 172,304.76 × 71,142.80
  4. Step 4: Simplify right side
    124,855.52x = 12,258,243,079.73
  5. Step 5: Solve for x
    x = 12,258,243,079.73/124,855.52
  6. Step 6: Final answer
    x = 98,179.42

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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.