Home / 107,986.49-162,028.97-55,432.91

Finding the Fourth Proportional to 107,986.49, 162,028.97 and 55,432.91

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Solution

The fourth proportional to 107,986.49, 162,028.97 and 55,432.91 is: 83,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,986.49 : 162,028.97 = 55,432.91 : x
  2. Step 2: Convert to fraction form
    107,986.49/162,028.97 = 55,432.91/x
  3. Step 3: Cross multiply
    107,986.49x = 162,028.97 × 55,432.91
  4. Step 4: Simplify right side
    107,986.49x = 8,981,737,311.40
  5. Step 5: Solve for x
    x = 8,981,737,311.40/107,986.49
  6. Step 6: Final answer
    x = 83,174.64

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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.