Home / 179,015.38-268,170.72-128,976.82

Finding the Fourth Proportional to 179,015.38, 268,170.72 and 128,976.82

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Solution

The fourth proportional to 179,015.38, 268,170.72 and 128,976.82 is: 193,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,015.38 : 268,170.72 = 128,976.82 : x
  2. Step 2: Convert to fraction form
    179,015.38/268,170.72 = 128,976.82/x
  3. Step 3: Cross multiply
    179,015.38x = 268,170.72 × 128,976.82
  4. Step 4: Simplify right side
    179,015.38x = 34,587,806,682.71
  5. Step 5: Solve for x
    x = 34,587,806,682.71/179,015.38
  6. Step 6: Final answer
    x = 193,211.37

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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.