Home / 161,883.41-242,367.20-85,808.61

Finding the Fourth Proportional to 161,883.41, 242,367.20 and 85,808.61

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Solution

The fourth proportional to 161,883.41, 242,367.20 and 85,808.61 is: 128,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,883.41 : 242,367.20 = 85,808.61 : x
  2. Step 2: Convert to fraction form
    161,883.41/242,367.20 = 85,808.61/x
  3. Step 3: Cross multiply
    161,883.41x = 242,367.20 × 85,808.61
  4. Step 4: Simplify right side
    161,883.41x = 20,797,192,112.55
  5. Step 5: Solve for x
    x = 20,797,192,112.55/161,883.41
  6. Step 6: Final answer
    x = 128,470.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.