Home / 215,274.16-322,736.28-75,131.20

Finding the Fourth Proportional to 215,274.16, 322,736.28 and 75,131.20

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Solution

The fourth proportional to 215,274.16, 322,736.28 and 75,131.20 is: 112,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,274.16 : 322,736.28 = 75,131.20 : x
  2. Step 2: Convert to fraction form
    215,274.16/322,736.28 = 75,131.20/x
  3. Step 3: Cross multiply
    215,274.16x = 322,736.28 × 75,131.20
  4. Step 4: Simplify right side
    215,274.16x = 24,247,563,999.94
  5. Step 5: Solve for x
    x = 24,247,563,999.94/215,274.16
  6. Step 6: Final answer
    x = 112,635.74

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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.