Home / 121,523.41-167,698.38-66,330.61

Finding the Fourth Proportional to 121,523.41, 167,698.38 and 66,330.61

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Solution

The fourth proportional to 121,523.41, 167,698.38 and 66,330.61 is: 91,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.41 : 167,698.38 = 66,330.61 : x
  2. Step 2: Convert to fraction form
    121,523.41/167,698.38 = 66,330.61/x
  3. Step 3: Cross multiply
    121,523.41x = 167,698.38 × 66,330.61
  4. Step 4: Simplify right side
    121,523.41x = 11,123,535,841.41
  5. Step 5: Solve for x
    x = 11,123,535,841.41/121,523.41
  6. Step 6: Final answer
    x = 91,534.10

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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.