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Finding the Fourth Proportional to 122,841.96, 169,531.70 and 69,123.57

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Solution

The fourth proportional to 122,841.96, 169,531.70 and 69,123.57 is: 95,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,841.96 : 169,531.70 = 69,123.57 : x
  2. Step 2: Convert to fraction form
    122,841.96/169,531.70 = 69,123.57/x
  3. Step 3: Cross multiply
    122,841.96x = 169,531.70 × 69,123.57
  4. Step 4: Simplify right side
    122,841.96x = 11,718,635,986.55
  5. Step 5: Solve for x
    x = 11,718,635,986.55/122,841.96
  6. Step 6: Final answer
    x = 95,396.04

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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.