Home / 122,556.12-169,101.20-71,545.69

Finding the Fourth Proportional to 122,556.12, 169,101.20 and 71,545.69

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Solution

The fourth proportional to 122,556.12, 169,101.20 and 71,545.69 is: 98,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,556.12 : 169,101.20 = 71,545.69 : x
  2. Step 2: Convert to fraction form
    122,556.12/169,101.20 = 71,545.69/x
  3. Step 3: Cross multiply
    122,556.12x = 169,101.20 × 71,545.69
  4. Step 4: Simplify right side
    122,556.12x = 12,098,462,033.83
  5. Step 5: Solve for x
    x = 12,098,462,033.83/122,556.12
  6. Step 6: Final answer
    x = 98,717.73

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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.