Home / 121,036.20-167,028.42-67,321

Finding the Fourth Proportional to 121,036.20, 167,028.42 and 67,321

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Solution

The fourth proportional to 121,036.20, 167,028.42 and 67,321 is: 92,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,036.20 : 167,028.42 = 67,321 : x
  2. Step 2: Convert to fraction form
    121,036.20/167,028.42 = 67,321/x
  3. Step 3: Cross multiply
    121,036.20x = 167,028.42 × 67,321
  4. Step 4: Simplify right side
    121,036.20x = 11,244,520,262.82
  5. Step 5: Solve for x
    x = 11,244,520,262.82/121,036.20
  6. Step 6: Final answer
    x = 92,902.13

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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.