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Finding the Fourth Proportional to 121,273.98, 181,963.89 and 42,444.78

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Solution

The fourth proportional to 121,273.98, 181,963.89 and 42,444.78 is: 63,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,273.98 : 181,963.89 = 42,444.78 : x
  2. Step 2: Convert to fraction form
    121,273.98/181,963.89 = 42,444.78/x
  3. Step 3: Cross multiply
    121,273.98x = 181,963.89 × 42,444.78
  4. Step 4: Simplify right side
    121,273.98x = 7,723,417,278.99
  5. Step 5: Solve for x
    x = 7,723,417,278.99/121,273.98
  6. Step 6: Final answer
    x = 63,685.69

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1.5x scale

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.