Home / 132,715.20-199,072.80-82,851.60

Finding the Fourth Proportional to 132,715.20, 199,072.80 and 82,851.60

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Solution

The fourth proportional to 132,715.20, 199,072.80 and 82,851.60 is: 124,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,715.20 : 199,072.80 = 82,851.60 : x
  2. Step 2: Convert to fraction form
    132,715.20/199,072.80 = 82,851.60/x
  3. Step 3: Cross multiply
    132,715.20x = 199,072.80 × 82,851.60
  4. Step 4: Simplify right side
    132,715.20x = 16,493,499,996.48
  5. Step 5: Solve for x
    x = 16,493,499,996.48/132,715.20
  6. Step 6: Final answer
    x = 124,277.40

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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.