Home / 88,380.66-132,570.96-72,765.48

Finding the Fourth Proportional to 88,380.66, 132,570.96 and 72,765.48

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Solution

The fourth proportional to 88,380.66, 132,570.96 and 72,765.48 is: 109,148.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,380.66 : 132,570.96 = 72,765.48 : x
  2. Step 2: Convert to fraction form
    88,380.66/132,570.96 = 72,765.48/x
  3. Step 3: Cross multiply
    88,380.66x = 132,570.96 × 72,765.48
  4. Step 4: Simplify right side
    88,380.66x = 9,646,589,538.46
  5. Step 5: Solve for x
    x = 9,646,589,538.46/88,380.66
  6. Step 6: Final answer
    x = 109,148.20

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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.