Home / 159,649.12-239,251.26-80,671.15

Finding the Fourth Proportional to 159,649.12, 239,251.26 and 80,671.15

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Solution

The fourth proportional to 159,649.12, 239,251.26 and 80,671.15 is: 120,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,649.12 : 239,251.26 = 80,671.15 : x
  2. Step 2: Convert to fraction form
    159,649.12/239,251.26 = 80,671.15/x
  3. Step 3: Cross multiply
    159,649.12x = 239,251.26 × 80,671.15
  4. Step 4: Simplify right side
    159,649.12x = 19,300,673,086.89
  5. Step 5: Solve for x
    x = 19,300,673,086.89/159,649.12
  6. Step 6: Final answer
    x = 120,894.33

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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.