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Finding the Fourth Proportional to 159,816.38, 239,753.74 and 79,896.12

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Solution

The fourth proportional to 159,816.38, 239,753.74 and 79,896.12 is: 119,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,816.38 : 239,753.74 = 79,896.12 : x
  2. Step 2: Convert to fraction form
    159,816.38/239,753.74 = 79,896.12/x
  3. Step 3: Cross multiply
    159,816.38x = 239,753.74 × 79,896.12
  4. Step 4: Simplify right side
    159,816.38x = 19,155,393,581.49
  5. Step 5: Solve for x
    x = 19,155,393,581.49/159,816.38
  6. Step 6: Final answer
    x = 119,858.76

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1.5x scale

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.