Home / 179,018.40-268,175.20-128,979.84

Finding the Fourth Proportional to 179,018.40, 268,175.20 and 128,979.84

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Solution

The fourth proportional to 179,018.40, 268,175.20 and 128,979.84 is: 193,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,018.40 : 268,175.20 = 128,979.84 : x
  2. Step 2: Convert to fraction form
    179,018.40/268,175.20 = 128,979.84/x
  3. Step 3: Cross multiply
    179,018.40x = 268,175.20 × 128,979.84
  4. Step 4: Simplify right side
    179,018.40x = 34,589,194,387.97
  5. Step 5: Solve for x
    x = 34,589,194,387.97/179,018.40
  6. Step 6: Final answer
    x = 193,215.86

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1.5x scale

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.