Home / 126,906.72-175,129.20-69,545.60

Finding the Fourth Proportional to 126,906.72, 175,129.20 and 69,545.60

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Solution

The fourth proportional to 126,906.72, 175,129.20 and 69,545.60 is: 95,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,906.72 : 175,129.20 = 69,545.60 : x
  2. Step 2: Convert to fraction form
    126,906.72/175,129.20 = 69,545.60/x
  3. Step 3: Cross multiply
    126,906.72x = 175,129.20 × 69,545.60
  4. Step 4: Simplify right side
    126,906.72x = 12,179,465,291.52
  5. Step 5: Solve for x
    x = 12,179,465,291.52/126,906.72
  6. Step 6: Final answer
    x = 95,971.79

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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.