Home / 110,928.20-166,392.30-68,937.80

Finding the Fourth Proportional to 110,928.20, 166,392.30 and 68,937.80

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Solution

The fourth proportional to 110,928.20, 166,392.30 and 68,937.80 is: 103,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,928.20 : 166,392.30 = 68,937.80 : x
  2. Step 2: Convert to fraction form
    110,928.20/166,392.30 = 68,937.80/x
  3. Step 3: Cross multiply
    110,928.20x = 166,392.30 × 68,937.80
  4. Step 4: Simplify right side
    110,928.20x = 11,470,719,098.94
  5. Step 5: Solve for x
    x = 11,470,719,098.94/110,928.20
  6. Step 6: Final answer
    x = 103,406.70

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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.