Home / 179,134.85-247,316.54-123,287.42

Finding the Fourth Proportional to 179,134.85, 247,316.54 and 123,287.42

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Solution

The fourth proportional to 179,134.85, 247,316.54 and 123,287.42 is: 170,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,134.85 : 247,316.54 = 123,287.42 : x
  2. Step 2: Convert to fraction form
    179,134.85/247,316.54 = 123,287.42/x
  3. Step 3: Cross multiply
    179,134.85x = 247,316.54 × 123,287.42
  4. Step 4: Simplify right side
    179,134.85x = 30,491,018,835.27
  5. Step 5: Solve for x
    x = 30,491,018,835.27/179,134.85
  6. Step 6: Final answer
    x = 170,212.66

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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.