Home / 129,896.19-194,864.67-55,016.75

Finding the Fourth Proportional to 129,896.19, 194,864.67 and 55,016.75

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Solution

The fourth proportional to 129,896.19, 194,864.67 and 55,016.75 is: 82,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,896.19 : 194,864.67 = 55,016.75 : x
  2. Step 2: Convert to fraction form
    129,896.19/194,864.67 = 55,016.75/x
  3. Step 3: Cross multiply
    129,896.19x = 194,864.67 × 55,016.75
  4. Step 4: Simplify right side
    129,896.19x = 10,720,821,320.38
  5. Step 5: Solve for x
    x = 10,720,821,320.38/129,896.19
  6. Step 6: Final answer
    x = 82,533.76

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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.