Home / 131,976.72-182,080.14-86,679.24

Finding the Fourth Proportional to 131,976.72, 182,080.14 and 86,679.24

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Solution

The fourth proportional to 131,976.72, 182,080.14 and 86,679.24 is: 119,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,976.72 : 182,080.14 = 86,679.24 : x
  2. Step 2: Convert to fraction form
    131,976.72/182,080.14 = 86,679.24/x
  3. Step 3: Cross multiply
    131,976.72x = 182,080.14 × 86,679.24
  4. Step 4: Simplify right side
    131,976.72x = 15,782,568,154.29
  5. Step 5: Solve for x
    x = 15,782,568,154.29/131,976.72
  6. Step 6: Final answer
    x = 119,586.00

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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.