Home / 122,234.40-168,685.20-74,489.76

Finding the Fourth Proportional to 122,234.40, 168,685.20 and 74,489.76

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Solution

The fourth proportional to 122,234.40, 168,685.20 and 74,489.76 is: 102,796.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,234.40 : 168,685.20 = 74,489.76 : x
  2. Step 2: Convert to fraction form
    122,234.40/168,685.20 = 74,489.76/x
  3. Step 3: Cross multiply
    122,234.40x = 168,685.20 × 74,489.76
  4. Step 4: Simplify right side
    122,234.40x = 12,565,320,063.55
  5. Step 5: Solve for x
    x = 12,565,320,063.55/122,234.40
  6. Step 6: Final answer
    x = 102,796.92

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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.