Home / 159,540.84-220,190.67-121,237.97

Finding the Fourth Proportional to 159,540.84, 220,190.67 and 121,237.97

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Solution

The fourth proportional to 159,540.84, 220,190.67 and 121,237.97 is: 167,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,540.84 : 220,190.67 = 121,237.97 : x
  2. Step 2: Convert to fraction form
    159,540.84/220,190.67 = 121,237.97/x
  3. Step 3: Cross multiply
    159,540.84x = 220,190.67 × 121,237.97
  4. Step 4: Simplify right side
    159,540.84x = 26,695,468,742.79
  5. Step 5: Solve for x
    x = 26,695,468,742.79/159,540.84
  6. Step 6: Final answer
    x = 167,326.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.