Home / 110,715.24-152,718.84-78,894.42

Finding the Fourth Proportional to 110,715.24, 152,718.84 and 78,894.42

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Solution

The fourth proportional to 110,715.24, 152,718.84 and 78,894.42 is: 108,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,715.24 : 152,718.84 = 78,894.42 : x
  2. Step 2: Convert to fraction form
    110,715.24/152,718.84 = 78,894.42/x
  3. Step 3: Cross multiply
    110,715.24x = 152,718.84 × 78,894.42
  4. Step 4: Simplify right side
    110,715.24x = 12,048,664,304.87
  5. Step 5: Solve for x
    x = 12,048,664,304.87/110,715.24
  6. Step 6: Final answer
    x = 108,825.71

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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.