Home / 132,421.10-198,716.70-73,299.20

Finding the Fourth Proportional to 132,421.10, 198,716.70 and 73,299.20

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Solution

The fourth proportional to 132,421.10, 198,716.70 and 73,299.20 is: 109,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,421.10 : 198,716.70 = 73,299.20 : x
  2. Step 2: Convert to fraction form
    132,421.10/198,716.70 = 73,299.20/x
  3. Step 3: Cross multiply
    132,421.10x = 198,716.70 × 73,299.20
  4. Step 4: Simplify right side
    132,421.10x = 14,565,775,136.64
  5. Step 5: Solve for x
    x = 14,565,775,136.64/132,421.10
  6. Step 6: Final answer
    x = 109,995.88

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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.