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Finding the Fourth Proportional to 121,284.88, 181,961.88 and 88,038.16

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Solution

The fourth proportional to 121,284.88, 181,961.88 and 88,038.16 is: 132,082.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.88 : 181,961.88 = 88,038.16 : x
  2. Step 2: Convert to fraction form
    121,284.88/181,961.88 = 88,038.16/x
  3. Step 3: Cross multiply
    121,284.88x = 181,961.88 × 88,038.16
  4. Step 4: Simplify right side
    121,284.88x = 16,019,589,105.34
  5. Step 5: Solve for x
    x = 16,019,589,105.34/121,284.88
  6. Step 6: Final answer
    x = 132,082.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.