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Finding the Fourth Proportional to 121,280.88, 181,955.88 and 88,034.16

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Solution

The fourth proportional to 121,280.88, 181,955.88 and 88,034.16 is: 132,076.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,280.88 : 181,955.88 = 88,034.16 : x
  2. Step 2: Convert to fraction form
    121,280.88/181,955.88 = 88,034.16/x
  3. Step 3: Cross multiply
    121,280.88x = 181,955.88 × 88,034.16
  4. Step 4: Simplify right side
    121,280.88x = 16,018,333,052.86
  5. Step 5: Solve for x
    x = 16,018,333,052.86/121,280.88
  6. Step 6: Final answer
    x = 132,076.33

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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.