Home / 223,423.12-335,029.09-81,169.20

Finding the Fourth Proportional to 223,423.12, 335,029.09 and 81,169.20

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Solution

The fourth proportional to 223,423.12, 335,029.09 and 81,169.20 is: 121,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,423.12 : 335,029.09 = 81,169.20 : x
  2. Step 2: Convert to fraction form
    223,423.12/335,029.09 = 81,169.20/x
  3. Step 3: Cross multiply
    223,423.12x = 335,029.09 × 81,169.20
  4. Step 4: Simplify right side
    223,423.12x = 27,194,041,797.69
  5. Step 5: Solve for x
    x = 27,194,041,797.69/223,423.12
  6. Step 6: Final answer
    x = 121,715.43

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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.