Home / 111,302.20-166,953.30-75,872.80

Finding the Fourth Proportional to 111,302.20, 166,953.30 and 75,872.80

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Solution

The fourth proportional to 111,302.20, 166,953.30 and 75,872.80 is: 113,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,302.20 : 166,953.30 = 75,872.80 : x
  2. Step 2: Convert to fraction form
    111,302.20/166,953.30 = 75,872.80/x
  3. Step 3: Cross multiply
    111,302.20x = 166,953.30 × 75,872.80
  4. Step 4: Simplify right side
    111,302.20x = 12,667,214,340.24
  5. Step 5: Solve for x
    x = 12,667,214,340.24/111,302.20
  6. Step 6: Final answer
    x = 113,809.20

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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.