Home / 117,788.78-176,616.03-80,394.12

Finding the Fourth Proportional to 117,788.78, 176,616.03 and 80,394.12

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Solution

The fourth proportional to 117,788.78, 176,616.03 and 80,394.12 is: 120,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,788.78 : 176,616.03 = 80,394.12 : x
  2. Step 2: Convert to fraction form
    117,788.78/176,616.03 = 80,394.12/x
  3. Step 3: Cross multiply
    117,788.78x = 176,616.03 × 80,394.12
  4. Step 4: Simplify right side
    117,788.78x = 14,198,890,309.74
  5. Step 5: Solve for x
    x = 14,198,890,309.74/117,788.78
  6. Step 6: Final answer
    x = 120,545.35

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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.