Home / 155,716.65-233,720.28-79,872.13

Finding the Fourth Proportional to 155,716.65, 233,720.28 and 79,872.13

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Solution

The fourth proportional to 155,716.65, 233,720.28 and 79,872.13 is: 119,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,716.65 : 233,720.28 = 79,872.13 : x
  2. Step 2: Convert to fraction form
    155,716.65/233,720.28 = 79,872.13/x
  3. Step 3: Cross multiply
    155,716.65x = 233,720.28 × 79,872.13
  4. Step 4: Simplify right side
    155,716.65x = 18,667,736,587.80
  5. Step 5: Solve for x
    x = 18,667,736,587.80/155,716.65
  6. Step 6: Final answer
    x = 119,882.73

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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.