Home / 122,629.38-169,198.98-71,613.15

Finding the Fourth Proportional to 122,629.38, 169,198.98 and 71,613.15

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Solution

The fourth proportional to 122,629.38, 169,198.98 and 71,613.15 is: 98,808.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,629.38 : 169,198.98 = 71,613.15 : x
  2. Step 2: Convert to fraction form
    122,629.38/169,198.98 = 71,613.15/x
  3. Step 3: Cross multiply
    122,629.38x = 169,198.98 × 71,613.15
  4. Step 4: Simplify right side
    122,629.38x = 12,116,871,934.59
  5. Step 5: Solve for x
    x = 12,116,871,934.59/122,629.38
  6. Step 6: Final answer
    x = 98,808.88

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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.