Home / 130,372.92-179,891.78-80,088.12

Finding the Fourth Proportional to 130,372.92, 179,891.78 and 80,088.12

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Solution

The fourth proportional to 130,372.92, 179,891.78 and 80,088.12 is: 110,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,372.92 : 179,891.78 = 80,088.12 : x
  2. Step 2: Convert to fraction form
    130,372.92/179,891.78 = 80,088.12/x
  3. Step 3: Cross multiply
    130,372.92x = 179,891.78 × 80,088.12
  4. Step 4: Simplify right side
    130,372.92x = 14,407,194,463.65
  5. Step 5: Solve for x
    x = 14,407,194,463.65/130,372.92
  6. Step 6: Final answer
    x = 110,507.57

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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.