Home / 149,456.16-206,143.92-88,979.94

Finding the Fourth Proportional to 149,456.16, 206,143.92 and 88,979.94

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Solution

The fourth proportional to 149,456.16, 206,143.92 and 88,979.94 is: 122,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,456.16 : 206,143.92 = 88,979.94 : x
  2. Step 2: Convert to fraction form
    149,456.16/206,143.92 = 88,979.94/x
  3. Step 3: Cross multiply
    149,456.16x = 206,143.92 × 88,979.94
  4. Step 4: Simplify right side
    149,456.16x = 18,342,673,632.96
  5. Step 5: Solve for x
    x = 18,342,673,632.96/149,456.16
  6. Step 6: Final answer
    x = 122,729.46

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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.