Home / 179,629.10-269,443.65-120,142.70

Finding the Fourth Proportional to 179,629.10, 269,443.65 and 120,142.70

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Solution

The fourth proportional to 179,629.10, 269,443.65 and 120,142.70 is: 180,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,629.10 : 269,443.65 = 120,142.70 : x
  2. Step 2: Convert to fraction form
    179,629.10/269,443.65 = 120,142.70/x
  3. Step 3: Cross multiply
    179,629.10x = 269,443.65 × 120,142.70
  4. Step 4: Simplify right side
    179,629.10x = 32,371,687,608.86
  5. Step 5: Solve for x
    x = 32,371,687,608.86/179,629.10
  6. Step 6: Final answer
    x = 180,214.05

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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.