Home / 202,082.43-278,872.07-111,442.17

Finding the Fourth Proportional to 202,082.43, 278,872.07 and 111,442.17

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Solution

The fourth proportional to 202,082.43, 278,872.07 and 111,442.17 is: 153,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,082.43 : 278,872.07 = 111,442.17 : x
  2. Step 2: Convert to fraction form
    202,082.43/278,872.07 = 111,442.17/x
  3. Step 3: Cross multiply
    202,082.43x = 278,872.07 × 111,442.17
  4. Step 4: Simplify right side
    202,082.43x = 31,078,108,075.98
  5. Step 5: Solve for x
    x = 31,078,108,075.98/202,082.43
  6. Step 6: Final answer
    x = 153,789.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.