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Finding the Fourth Proportional to 122,254.29, 168,728.19 and 67,818.64

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Solution

The fourth proportional to 122,254.29, 168,728.19 and 67,818.64 is: 93,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,254.29 : 168,728.19 = 67,818.64 : x
  2. Step 2: Convert to fraction form
    122,254.29/168,728.19 = 67,818.64/x
  3. Step 3: Cross multiply
    122,254.29x = 168,728.19 × 67,818.64
  4. Step 4: Simplify right side
    122,254.29x = 11,442,916,375.46
  5. Step 5: Solve for x
    x = 11,442,916,375.46/122,254.29
  6. Step 6: Final answer
    x = 93,599.30

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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.