Home / 120,549.42-180,799.43-45,643.73

Finding the Fourth Proportional to 120,549.42, 180,799.43 and 45,643.73

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Solution

The fourth proportional to 120,549.42, 180,799.43 and 45,643.73 is: 68,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,549.42 : 180,799.43 = 45,643.73 : x
  2. Step 2: Convert to fraction form
    120,549.42/180,799.43 = 45,643.73/x
  3. Step 3: Cross multiply
    120,549.42x = 180,799.43 × 45,643.73
  4. Step 4: Simplify right side
    120,549.42x = 8,252,359,234.86
  5. Step 5: Solve for x
    x = 8,252,359,234.86/120,549.42
  6. Step 6: Final answer
    x = 68,456.23

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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.