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Finding the Fourth Proportional to 88,447.80, 132,307.20 and 80,662.08

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Solution

The fourth proportional to 88,447.80, 132,307.20 and 80,662.08 is: 120,660.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,447.80 : 132,307.20 = 80,662.08 : x
  2. Step 2: Convert to fraction form
    88,447.80/132,307.20 = 80,662.08/x
  3. Step 3: Cross multiply
    88,447.80x = 132,307.20 × 80,662.08
  4. Step 4: Simplify right side
    88,447.80x = 10,672,173,950.98
  5. Step 5: Solve for x
    x = 10,672,173,950.98/88,447.80
  6. Step 6: Final answer
    x = 120,660.71

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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.