Home / 124,535.75-171,859.35-79,823.75

Finding the Fourth Proportional to 124,535.75, 171,859.35 and 79,823.75

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Solution

The fourth proportional to 124,535.75, 171,859.35 and 79,823.75 is: 110,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,535.75 : 171,859.35 = 79,823.75 : x
  2. Step 2: Convert to fraction form
    124,535.75/171,859.35 = 79,823.75/x
  3. Step 3: Cross multiply
    124,535.75x = 171,859.35 × 79,823.75
  4. Step 4: Simplify right side
    124,535.75x = 13,718,457,789.56
  5. Step 5: Solve for x
    x = 13,718,457,789.56/124,535.75
  6. Step 6: Final answer
    x = 110,156.78

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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.