Home / 132,504.48-198,298.08-81,882.72

Finding the Fourth Proportional to 132,504.48, 198,298.08 and 81,882.72

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Solution

The fourth proportional to 132,504.48, 198,298.08 and 81,882.72 is: 122,540.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,504.48 : 198,298.08 = 81,882.72 : x
  2. Step 2: Convert to fraction form
    132,504.48/198,298.08 = 81,882.72/x
  3. Step 3: Cross multiply
    132,504.48x = 198,298.08 × 81,882.72
  4. Step 4: Simplify right side
    132,504.48x = 16,237,186,161.18
  5. Step 5: Solve for x
    x = 16,237,186,161.18/132,504.48
  6. Step 6: Final answer
    x = 122,540.66

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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.