Home / 122,626.09-169,225.12-74,229.13

Finding the Fourth Proportional to 122,626.09, 169,225.12 and 74,229.13

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Solution

The fourth proportional to 122,626.09, 169,225.12 and 74,229.13 is: 102,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,626.09 : 169,225.12 = 74,229.13 : x
  2. Step 2: Convert to fraction form
    122,626.09/169,225.12 = 74,229.13/x
  3. Step 3: Cross multiply
    122,626.09x = 169,225.12 × 74,229.13
  4. Step 4: Simplify right side
    122,626.09x = 12,561,432,214.47
  5. Step 5: Solve for x
    x = 12,561,432,214.47/122,626.09
  6. Step 6: Final answer
    x = 102,436.87

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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.