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Finding the Fourth Proportional to 88,609.94, 132,350 and 80,163.53

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Solution

The fourth proportional to 88,609.94, 132,350 and 80,163.53 is: 119,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,609.94 : 132,350 = 80,163.53 : x
  2. Step 2: Convert to fraction form
    88,609.94/132,350 = 80,163.53/x
  3. Step 3: Cross multiply
    88,609.94x = 132,350 × 80,163.53
  4. Step 4: Simplify right side
    88,609.94x = 10,609,642,533.75
  5. Step 5: Solve for x
    x = 10,609,642,533.75/88,609.94
  6. Step 6: Final answer
    x = 119,734.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.