Home / 132,001.47-197,715.46-81,245.79

Finding the Fourth Proportional to 132,001.47, 197,715.46 and 81,245.79

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Solution

The fourth proportional to 132,001.47, 197,715.46 and 81,245.79 is: 121,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,001.47 : 197,715.46 = 81,245.79 : x
  2. Step 2: Convert to fraction form
    132,001.47/197,715.46 = 81,245.79/x
  3. Step 3: Cross multiply
    132,001.47x = 197,715.46 × 81,245.79
  4. Step 4: Simplify right side
    132,001.47x = 16,063,548,844.47
  5. Step 5: Solve for x
    x = 16,063,548,844.47/132,001.47
  6. Step 6: Final answer
    x = 121,692.20

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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.