Home / 137,434.20-206,151.30-109,786.20

Finding the Fourth Proportional to 137,434.20, 206,151.30 and 109,786.20

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Solution

The fourth proportional to 137,434.20, 206,151.30 and 109,786.20 is: 164,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,434.20 : 206,151.30 = 109,786.20 : x
  2. Step 2: Convert to fraction form
    137,434.20/206,151.30 = 109,786.20/x
  3. Step 3: Cross multiply
    137,434.20x = 206,151.30 × 109,786.20
  4. Step 4: Simplify right side
    137,434.20x = 22,632,567,852.06
  5. Step 5: Solve for x
    x = 22,632,567,852.06/137,434.20
  6. Step 6: Final answer
    x = 164,679.30

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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.