Home / 138,976.68-208,743.99-82,926.18

Finding the Fourth Proportional to 138,976.68, 208,743.99 and 82,926.18

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Solution

The fourth proportional to 138,976.68, 208,743.99 and 82,926.18 is: 124,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,976.68 : 208,743.99 = 82,926.18 : x
  2. Step 2: Convert to fraction form
    138,976.68/208,743.99 = 82,926.18/x
  3. Step 3: Cross multiply
    138,976.68x = 208,743.99 × 82,926.18
  4. Step 4: Simplify right side
    138,976.68x = 17,310,341,688.66
  5. Step 5: Solve for x
    x = 17,310,341,688.66/138,976.68
  6. Step 6: Final answer
    x = 124,555.73

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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.