Home / 88,421.16-132,631.92-72,805.98

Finding the Fourth Proportional to 88,421.16, 132,631.92 and 72,805.98

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Solution

The fourth proportional to 88,421.16, 132,631.92 and 72,805.98 is: 109,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,421.16 : 132,631.92 = 72,805.98 : x
  2. Step 2: Convert to fraction form
    88,421.16/132,631.92 = 72,805.98/x
  3. Step 3: Cross multiply
    88,421.16x = 132,631.92 × 72,805.98
  4. Step 4: Simplify right side
    88,421.16x = 9,656,396,914.88
  5. Step 5: Solve for x
    x = 9,656,396,914.88/88,421.16
  6. Step 6: Final answer
    x = 109,209.12

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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.