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Finding the Fourth Proportional to 159,939.05, 239,894.61 and 65,179.17

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Solution

The fourth proportional to 159,939.05, 239,894.61 and 65,179.17 is: 97,763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,939.05 : 239,894.61 = 65,179.17 : x
  2. Step 2: Convert to fraction form
    159,939.05/239,894.61 = 65,179.17/x
  3. Step 3: Cross multiply
    159,939.05x = 239,894.61 × 65,179.17
  4. Step 4: Simplify right side
    159,939.05x = 15,636,131,567.27
  5. Step 5: Solve for x
    x = 15,636,131,567.27/159,939.05
  6. Step 6: Final answer
    x = 97,763.07

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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.