Home / 179,019.40-268,176.70-128,980.84

Finding the Fourth Proportional to 179,019.40, 268,176.70 and 128,980.84

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Solution

The fourth proportional to 179,019.40, 268,176.70 and 128,980.84 is: 193,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,019.40 : 268,176.70 = 128,980.84 : x
  2. Step 2: Convert to fraction form
    179,019.40/268,176.70 = 128,980.84/x
  3. Step 3: Cross multiply
    179,019.40x = 268,176.70 × 128,980.84
  4. Step 4: Simplify right side
    179,019.40x = 34,589,656,034.43
  5. Step 5: Solve for x
    x = 34,589,656,034.43/179,019.40
  6. Step 6: Final answer
    x = 193,217.36

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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.