Home / 121,178.98-181,769.79-42,293.50

Finding the Fourth Proportional to 121,178.98, 181,769.79 and 42,293.50

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Solution

The fourth proportional to 121,178.98, 181,769.79 and 42,293.50 is: 63,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,178.98 : 181,769.79 = 42,293.50 : x
  2. Step 2: Convert to fraction form
    121,178.98/181,769.79 = 42,293.50/x
  3. Step 3: Cross multiply
    121,178.98x = 181,769.79 × 42,293.50
  4. Step 4: Simplify right side
    121,178.98x = 7,687,680,613.37
  5. Step 5: Solve for x
    x = 7,687,680,613.37/121,178.98
  6. Step 6: Final answer
    x = 63,440.71

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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.