Home / 106,321.55-159,318.30-92,215.40

Finding the Fourth Proportional to 106,321.55, 159,318.30 and 92,215.40

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Solution

The fourth proportional to 106,321.55, 159,318.30 and 92,215.40 is: 138,180.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,321.55 : 159,318.30 = 92,215.40 : x
  2. Step 2: Convert to fraction form
    106,321.55/159,318.30 = 92,215.40/x
  3. Step 3: Cross multiply
    106,321.55x = 159,318.30 × 92,215.40
  4. Step 4: Simplify right side
    106,321.55x = 14,691,600,761.82
  5. Step 5: Solve for x
    x = 14,691,600,761.82/106,321.55
  6. Step 6: Final answer
    x = 138,180.84

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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.