Home / 122,630.13-169,234.25-74,904.93

Finding the Fourth Proportional to 122,630.13, 169,234.25 and 74,904.93

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Solution

The fourth proportional to 122,630.13, 169,234.25 and 74,904.93 is: 103,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,630.13 : 169,234.25 = 74,904.93 : x
  2. Step 2: Convert to fraction form
    122,630.13/169,234.25 = 74,904.93/x
  3. Step 3: Cross multiply
    122,630.13x = 169,234.25 × 74,904.93
  4. Step 4: Simplify right side
    122,630.13x = 12,676,479,275.33
  5. Step 5: Solve for x
    x = 12,676,479,275.33/122,630.13
  6. Step 6: Final answer
    x = 103,371.65

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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.