Home / 80,116.17-120,174.52-30,182.86

Finding the Fourth Proportional to 80,116.17, 120,174.52 and 30,182.86

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Solution

The fourth proportional to 80,116.17, 120,174.52 and 30,182.86 is: 45,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,116.17 : 120,174.52 = 30,182.86 : x
  2. Step 2: Convert to fraction form
    80,116.17/120,174.52 = 30,182.86/x
  3. Step 3: Cross multiply
    80,116.17x = 120,174.52 × 30,182.86
  4. Step 4: Simplify right side
    80,116.17x = 3,627,210,844.08
  5. Step 5: Solve for x
    x = 3,627,210,844.08/80,116.17
  6. Step 6: Final answer
    x = 45,274.39

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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.