Home / 215,388.47-323,082.79-96,921.42

Finding the Fourth Proportional to 215,388.47, 323,082.79 and 96,921.42

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Solution

The fourth proportional to 215,388.47, 323,082.79 and 96,921.42 is: 145,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,388.47 : 323,082.79 = 96,921.42 : x
  2. Step 2: Convert to fraction form
    215,388.47/323,082.79 = 96,921.42/x
  3. Step 3: Cross multiply
    215,388.47x = 323,082.79 × 96,921.42
  4. Step 4: Simplify right side
    215,388.47x = 31,313,642,542.06
  5. Step 5: Solve for x
    x = 31,313,642,542.06/215,388.47
  6. Step 6: Final answer
    x = 145,382.17

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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.