Home / 120,851.27-181,276.97-45,954.12

Finding the Fourth Proportional to 120,851.27, 181,276.97 and 45,954.12

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Solution

The fourth proportional to 120,851.27, 181,276.97 and 45,954.12 is: 68,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,851.27 : 181,276.97 = 45,954.12 : x
  2. Step 2: Convert to fraction form
    120,851.27/181,276.97 = 45,954.12/x
  3. Step 3: Cross multiply
    120,851.27x = 181,276.97 × 45,954.12
  4. Step 4: Simplify right side
    120,851.27x = 8,330,423,402.85
  5. Step 5: Solve for x
    x = 8,330,423,402.85/120,851.27
  6. Step 6: Final answer
    x = 68,931.21

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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.