Home / 159,279.16-219,800.82-90,381.17

Finding the Fourth Proportional to 159,279.16, 219,800.82 and 90,381.17

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Solution

The fourth proportional to 159,279.16, 219,800.82 and 90,381.17 is: 124,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,279.16 : 219,800.82 = 90,381.17 : x
  2. Step 2: Convert to fraction form
    159,279.16/219,800.82 = 90,381.17/x
  3. Step 3: Cross multiply
    159,279.16x = 219,800.82 × 90,381.17
  4. Step 4: Simplify right side
    159,279.16x = 19,865,855,278.56
  5. Step 5: Solve for x
    x = 19,865,855,278.56/159,279.16
  6. Step 6: Final answer
    x = 124,723.51

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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.