Home / 121,376.72-181,824.78-57,247.04

Finding the Fourth Proportional to 121,376.72, 181,824.78 and 57,247.04

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Solution

The fourth proportional to 121,376.72, 181,824.78 and 57,247.04 is: 85,757.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,376.72 : 181,824.78 = 57,247.04 : x
  2. Step 2: Convert to fraction form
    121,376.72/181,824.78 = 57,247.04/x
  3. Step 3: Cross multiply
    121,376.72x = 181,824.78 × 57,247.04
  4. Step 4: Simplify right side
    121,376.72x = 10,408,930,453.65
  5. Step 5: Solve for x
    x = 10,408,930,453.65/121,376.72
  6. Step 6: Final answer
    x = 85,757.22

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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.