Home / 121,330.38-167,445.59-66,892.44

Finding the Fourth Proportional to 121,330.38, 167,445.59 and 66,892.44

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Solution

The fourth proportional to 121,330.38, 167,445.59 and 66,892.44 is: 92,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,330.38 : 167,445.59 = 66,892.44 : x
  2. Step 2: Convert to fraction form
    121,330.38/167,445.59 = 66,892.44/x
  3. Step 3: Cross multiply
    121,330.38x = 167,445.59 × 66,892.44
  4. Step 4: Simplify right side
    121,330.38x = 11,200,843,747.88
  5. Step 5: Solve for x
    x = 11,200,843,747.88/121,330.38
  6. Step 6: Final answer
    x = 92,316.89

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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.