Home / 106,517.73-159,624.32-78,215.73

Finding the Fourth Proportional to 106,517.73, 159,624.32 and 78,215.73

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Solution

The fourth proportional to 106,517.73, 159,624.32 and 78,215.73 is: 117,211.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,517.73 : 159,624.32 = 78,215.73 : x
  2. Step 2: Convert to fraction form
    106,517.73/159,624.32 = 78,215.73/x
  3. Step 3: Cross multiply
    106,517.73x = 159,624.32 × 78,215.73
  4. Step 4: Simplify right side
    106,517.73x = 12,485,132,164.85
  5. Step 5: Solve for x
    x = 12,485,132,164.85/106,517.73
  6. Step 6: Final answer
    x = 117,211.77

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1.5x scale

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.