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Finding the Fourth Proportional to 121,179.88, 181,852.87 and 42,294.10

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Solution

The fourth proportional to 121,179.88, 181,852.87 and 42,294.10 is: 63,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,179.88 : 181,852.87 = 42,294.10 : x
  2. Step 2: Convert to fraction form
    121,179.88/181,852.87 = 42,294.10/x
  3. Step 3: Cross multiply
    121,179.88x = 181,852.87 × 42,294.10
  4. Step 4: Simplify right side
    121,179.88x = 7,691,303,755.68
  5. Step 5: Solve for x
    x = 7,691,303,755.68/121,179.88
  6. Step 6: Final answer
    x = 63,470.14

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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.