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Finding the Fourth Proportional to 159,814.38, 239,750.74 and 79,894.12

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Solution

The fourth proportional to 159,814.38, 239,750.74 and 79,894.12 is: 119,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,814.38 : 239,750.74 = 79,894.12 : x
  2. Step 2: Convert to fraction form
    159,814.38/239,750.74 = 79,894.12/x
  3. Step 3: Cross multiply
    159,814.38x = 239,750.74 × 79,894.12
  4. Step 4: Simplify right side
    159,814.38x = 19,154,674,391.65
  5. Step 5: Solve for x
    x = 19,154,674,391.65/159,814.38
  6. Step 6: Final answer
    x = 119,855.76

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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.