Home / 159,211.72-219,743.56-91,274.32

Finding the Fourth Proportional to 159,211.72, 219,743.56 and 91,274.32

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Solution

The fourth proportional to 159,211.72, 219,743.56 and 91,274.32 is: 125,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,211.72 : 219,743.56 = 91,274.32 : x
  2. Step 2: Convert to fraction form
    159,211.72/219,743.56 = 91,274.32/x
  3. Step 3: Cross multiply
    159,211.72x = 219,743.56 × 91,274.32
  4. Step 4: Simplify right side
    159,211.72x = 20,056,944,013.38
  5. Step 5: Solve for x
    x = 20,056,944,013.38/159,211.72
  6. Step 6: Final answer
    x = 125,976.56

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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.