Home / 124,371.56-171,660.44-79,040.70

Finding the Fourth Proportional to 124,371.56, 171,660.44 and 79,040.70

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Solution

The fourth proportional to 124,371.56, 171,660.44 and 79,040.70 is: 109,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,371.56 : 171,660.44 = 79,040.70 : x
  2. Step 2: Convert to fraction form
    124,371.56/171,660.44 = 79,040.70/x
  3. Step 3: Cross multiply
    124,371.56x = 171,660.44 × 79,040.70
  4. Step 4: Simplify right side
    124,371.56x = 13,568,161,339.91
  5. Step 5: Solve for x
    x = 13,568,161,339.91/124,371.56
  6. Step 6: Final answer
    x = 109,093.76

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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.