Home / 124,371.18-171,659.92-79,040.32

Finding the Fourth Proportional to 124,371.18, 171,659.92 and 79,040.32

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Solution

The fourth proportional to 124,371.18, 171,659.92 and 79,040.32 is: 109,093.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,371.18 : 171,659.92 = 79,040.32 : x
  2. Step 2: Convert to fraction form
    124,371.18/171,659.92 = 79,040.32/x
  3. Step 3: Cross multiply
    124,371.18x = 171,659.92 × 79,040.32
  4. Step 4: Simplify right side
    124,371.18x = 13,568,054,149.67
  5. Step 5: Solve for x
    x = 13,568,054,149.67/124,371.18
  6. Step 6: Final answer
    x = 109,093.23

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1.5x scale

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.