Home / 87,198.20-120,370.07-58,942.16

Finding the Fourth Proportional to 87,198.20, 120,370.07 and 58,942.16

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Solution

The fourth proportional to 87,198.20, 120,370.07 and 58,942.16 is: 81,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198.20 : 120,370.07 = 58,942.16 : x
  2. Step 2: Convert to fraction form
    87,198.20/120,370.07 = 58,942.16/x
  3. Step 3: Cross multiply
    87,198.20x = 120,370.07 × 58,942.16
  4. Step 4: Simplify right side
    87,198.20x = 7,094,871,470.66
  5. Step 5: Solve for x
    x = 7,094,871,470.66/87,198.20
  6. Step 6: Final answer
    x = 81,364.89

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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.