Home / 130,215.92-179,687.11-120,695.18

Finding the Fourth Proportional to 130,215.92, 179,687.11 and 120,695.18

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Solution

The fourth proportional to 130,215.92, 179,687.11 and 120,695.18 is: 166,549.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,215.92 : 179,687.11 = 120,695.18 : x
  2. Step 2: Convert to fraction form
    130,215.92/179,687.11 = 120,695.18/x
  3. Step 3: Cross multiply
    130,215.92x = 179,687.11 × 120,695.18
  4. Step 4: Simplify right side
    130,215.92x = 21,687,367,481.65
  5. Step 5: Solve for x
    x = 21,687,367,481.65/130,215.92
  6. Step 6: Final answer
    x = 166,549.28

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1.5x scale

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.