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Finding the Fourth Proportional to 121,036.68, 167,034.66 and 66,591.12

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Solution

The fourth proportional to 121,036.68, 167,034.66 and 66,591.12 is: 91,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,036.68 : 167,034.66 = 66,591.12 : x
  2. Step 2: Convert to fraction form
    121,036.68/167,034.66 = 66,591.12/x
  3. Step 3: Cross multiply
    121,036.68x = 167,034.66 × 66,591.12
  4. Step 4: Simplify right side
    121,036.68x = 11,123,025,088.22
  5. Step 5: Solve for x
    x = 11,123,025,088.22/121,036.68
  6. Step 6: Final answer
    x = 91,897.97

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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.