Home / 215,273.16-322,734.78-75,130.20

Finding the Fourth Proportional to 215,273.16, 322,734.78 and 75,130.20

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Solution

The fourth proportional to 215,273.16, 322,734.78 and 75,130.20 is: 112,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,273.16 : 322,734.78 = 75,130.20 : x
  2. Step 2: Convert to fraction form
    215,273.16/322,734.78 = 75,130.20/x
  3. Step 3: Cross multiply
    215,273.16x = 322,734.78 × 75,130.20
  4. Step 4: Simplify right side
    215,273.16x = 24,247,128,568.36
  5. Step 5: Solve for x
    x = 24,247,128,568.36/215,273.16
  6. Step 6: Final answer
    x = 112,634.24

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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.