Home / 106,261.20-159,046.20-82,760.40

Finding the Fourth Proportional to 106,261.20, 159,046.20 and 82,760.40

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Solution

The fourth proportional to 106,261.20, 159,046.20 and 82,760.40 is: 123,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,261.20 : 159,046.20 = 82,760.40 : x
  2. Step 2: Convert to fraction form
    106,261.20/159,046.20 = 82,760.40/x
  3. Step 3: Cross multiply
    106,261.20x = 159,046.20 × 82,760.40
  4. Step 4: Simplify right side
    106,261.20x = 13,162,727,130.48
  5. Step 5: Solve for x
    x = 13,162,727,130.48/106,261.20
  6. Step 6: Final answer
    x = 123,871.43

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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.