Home / 131,316.87-196,979.26-51,351.65

Finding the Fourth Proportional to 131,316.87, 196,979.26 and 51,351.65

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Solution

The fourth proportional to 131,316.87, 196,979.26 and 51,351.65 is: 77,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316.87 : 196,979.26 = 51,351.65 : x
  2. Step 2: Convert to fraction form
    131,316.87/196,979.26 = 51,351.65/x
  3. Step 3: Cross multiply
    131,316.87x = 196,979.26 × 51,351.65
  4. Step 4: Simplify right side
    131,316.87x = 10,115,210,016.78
  5. Step 5: Solve for x
    x = 10,115,210,016.78/131,316.87
  6. Step 6: Final answer
    x = 77,029.02

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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.