Home / 122,641.05-168,766.41-108,527.61

Finding the Fourth Proportional to 122,641.05, 168,766.41 and 108,527.61

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Solution

The fourth proportional to 122,641.05, 168,766.41 and 108,527.61 is: 149,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,641.05 : 168,766.41 = 108,527.61 : x
  2. Step 2: Convert to fraction form
    122,641.05/168,766.41 = 108,527.61/x
  3. Step 3: Cross multiply
    122,641.05x = 168,766.41 × 108,527.61
  4. Step 4: Simplify right side
    122,641.05x = 18,315,815,125.58
  5. Step 5: Solve for x
    x = 18,315,815,125.58/122,641.05
  6. Step 6: Final answer
    x = 149,344.90

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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.