Home / 220,732.50-304,610.85-120,131.22

Finding the Fourth Proportional to 220,732.50, 304,610.85 and 120,131.22

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Solution

The fourth proportional to 220,732.50, 304,610.85 and 120,131.22 is: 165,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,732.50 : 304,610.85 = 120,131.22 : x
  2. Step 2: Convert to fraction form
    220,732.50/304,610.85 = 120,131.22/x
  3. Step 3: Cross multiply
    220,732.50x = 304,610.85 × 120,131.22
  4. Step 4: Simplify right side
    220,732.50x = 36,593,273,035.74
  5. Step 5: Solve for x
    x = 36,593,273,035.74/220,732.50
  6. Step 6: Final answer
    x = 165,781.08

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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.