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Finding the Fourth Proportional to 159,137.29, 219,581.04 and 90,227.08

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Solution

The fourth proportional to 159,137.29, 219,581.04 and 90,227.08 is: 124,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,137.29 : 219,581.04 = 90,227.08 : x
  2. Step 2: Convert to fraction form
    159,137.29/219,581.04 = 90,227.08/x
  3. Step 3: Cross multiply
    159,137.29x = 219,581.04 × 90,227.08
  4. Step 4: Simplify right side
    159,137.29x = 19,812,156,062.56
  5. Step 5: Solve for x
    x = 19,812,156,062.56/159,137.29
  6. Step 6: Final answer
    x = 124,497.26

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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.