Home / 80,110.17-120,165.52-30,176.87

Finding the Fourth Proportional to 80,110.17, 120,165.52 and 30,176.87

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Solution

The fourth proportional to 80,110.17, 120,165.52 and 30,176.87 is: 45,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,110.17 : 120,165.52 = 30,176.87 : x
  2. Step 2: Convert to fraction form
    80,110.17/120,165.52 = 30,176.87/x
  3. Step 3: Cross multiply
    80,110.17x = 120,165.52 × 30,176.87
  4. Step 4: Simplify right side
    80,110.17x = 3,626,218,599.25
  5. Step 5: Solve for x
    x = 3,626,218,599.25/80,110.17
  6. Step 6: Final answer
    x = 45,265.40

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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.