Home / 171,020.86-256,535.70-81,042.46

Finding the Fourth Proportional to 171,020.86, 256,535.70 and 81,042.46

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Solution

The fourth proportional to 171,020.86, 256,535.70 and 81,042.46 is: 121,565.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,020.86 : 256,535.70 = 81,042.46 : x
  2. Step 2: Convert to fraction form
    171,020.86/256,535.70 = 81,042.46/x
  3. Step 3: Cross multiply
    171,020.86x = 256,535.70 × 81,042.46
  4. Step 4: Simplify right side
    171,020.86x = 20,790,284,205.82
  5. Step 5: Solve for x
    x = 20,790,284,205.82/171,020.86
  6. Step 6: Final answer
    x = 121,565.78

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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.