Home / 88,241.25-132,518.61-81,206.40

Finding the Fourth Proportional to 88,241.25, 132,518.61 and 81,206.40

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Solution

The fourth proportional to 88,241.25, 132,518.61 and 81,206.40 is: 121,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,241.25 : 132,518.61 = 81,206.40 : x
  2. Step 2: Convert to fraction form
    88,241.25/132,518.61 = 81,206.40/x
  3. Step 3: Cross multiply
    88,241.25x = 132,518.61 × 81,206.40
  4. Step 4: Simplify right side
    88,241.25x = 10,761,359,251.10
  5. Step 5: Solve for x
    x = 10,761,359,251.10/88,241.25
  6. Step 6: Final answer
    x = 121,953.84

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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.