Home / 206,581.32-309,870.36-136,443.96

Finding the Fourth Proportional to 206,581.32, 309,870.36 and 136,443.96

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Solution

The fourth proportional to 206,581.32, 309,870.36 and 136,443.96 is: 204,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,581.32 : 309,870.36 = 136,443.96 : x
  2. Step 2: Convert to fraction form
    206,581.32/309,870.36 = 136,443.96/x
  3. Step 3: Cross multiply
    206,581.32x = 309,870.36 × 136,443.96
  4. Step 4: Simplify right side
    206,581.32x = 42,279,939,005.03
  5. Step 5: Solve for x
    x = 42,279,939,005.03/206,581.32
  6. Step 6: Final answer
    x = 204,664.87

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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.