Home / 130,226.40-194,756.40-109,231.20

Finding the Fourth Proportional to 130,226.40, 194,756.40 and 109,231.20

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Solution

The fourth proportional to 130,226.40, 194,756.40 and 109,231.20 is: 163,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,226.40 : 194,756.40 = 109,231.20 : x
  2. Step 2: Convert to fraction form
    130,226.40/194,756.40 = 109,231.20/x
  3. Step 3: Cross multiply
    130,226.40x = 194,756.40 × 109,231.20
  4. Step 4: Simplify right side
    130,226.40x = 21,273,475,279.68
  5. Step 5: Solve for x
    x = 21,273,475,279.68/130,226.40
  6. Step 6: Final answer
    x = 163,357.62

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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.