Home / 193,286.80-289,541.40-130,301.20

Finding the Fourth Proportional to 193,286.80, 289,541.40 and 130,301.20

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Solution

The fourth proportional to 193,286.80, 289,541.40 and 130,301.20 is: 195,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,286.80 : 289,541.40 = 130,301.20 : x
  2. Step 2: Convert to fraction form
    193,286.80/289,541.40 = 130,301.20/x
  3. Step 3: Cross multiply
    193,286.80x = 289,541.40 × 130,301.20
  4. Step 4: Simplify right side
    193,286.80x = 37,727,591,869.68
  5. Step 5: Solve for x
    x = 37,727,591,869.68/193,286.80
  6. Step 6: Final answer
    x = 195,189.70

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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.