Home / 132,647.10-198,679.05-79,964.70

Finding the Fourth Proportional to 132,647.10, 198,679.05 and 79,964.70

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Solution

The fourth proportional to 132,647.10, 198,679.05 and 79,964.70 is: 119,771.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,647.10 : 198,679.05 = 79,964.70 : x
  2. Step 2: Convert to fraction form
    132,647.10/198,679.05 = 79,964.70/x
  3. Step 3: Cross multiply
    132,647.10x = 198,679.05 × 79,964.70
  4. Step 4: Simplify right side
    132,647.10x = 15,887,310,629.54
  5. Step 5: Solve for x
    x = 15,887,310,629.54/132,647.10
  6. Step 6: Final answer
    x = 119,771.26

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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.