Home / 192,789.90-265,689.44-138,983.22

Finding the Fourth Proportional to 192,789.90, 265,689.44 and 138,983.22

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Solution

The fourth proportional to 192,789.90, 265,689.44 and 138,983.22 is: 191,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,789.90 : 265,689.44 = 138,983.22 : x
  2. Step 2: Convert to fraction form
    192,789.90/265,689.44 = 138,983.22/x
  3. Step 3: Cross multiply
    192,789.90x = 265,689.44 × 138,983.22
  4. Step 4: Simplify right side
    192,789.90x = 36,926,373,891.20
  5. Step 5: Solve for x
    x = 36,926,373,891.20/192,789.90
  6. Step 6: Final answer
    x = 191,536.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.