Home / 121,148.92-181,724.22-42,262.84

Finding the Fourth Proportional to 121,148.92, 181,724.22 and 42,262.84

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Solution

The fourth proportional to 121,148.92, 181,724.22 and 42,262.84 is: 63,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.92 : 181,724.22 = 42,262.84 : x
  2. Step 2: Convert to fraction form
    121,148.92/181,724.22 = 42,262.84/x
  3. Step 3: Cross multiply
    121,148.92x = 181,724.22 × 42,262.84
  4. Step 4: Simplify right side
    121,148.92x = 7,680,181,633.98
  5. Step 5: Solve for x
    x = 7,680,181,633.98/121,148.92
  6. Step 6: Final answer
    x = 63,394.55

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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.