Home / 103,835.92-155,766.84-40,647.88

Finding the Fourth Proportional to 103,835.92, 155,766.84 and 40,647.88

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Solution

The fourth proportional to 103,835.92, 155,766.84 and 40,647.88 is: 60,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,835.92 : 155,766.84 = 40,647.88 : x
  2. Step 2: Convert to fraction form
    103,835.92/155,766.84 = 40,647.88/x
  3. Step 3: Cross multiply
    103,835.92x = 155,766.84 × 40,647.88
  4. Step 4: Simplify right side
    103,835.92x = 6,331,591,820.30
  5. Step 5: Solve for x
    x = 6,331,591,820.30/103,835.92
  6. Step 6: Final answer
    x = 60,976.89

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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.