Home / 165,863.12-248,794.04-138,102.48

Finding the Fourth Proportional to 165,863.12, 248,794.04 and 138,102.48

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Solution

The fourth proportional to 165,863.12, 248,794.04 and 138,102.48 is: 207,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,863.12 : 248,794.04 = 138,102.48 : x
  2. Step 2: Convert to fraction form
    165,863.12/248,794.04 = 138,102.48/x
  3. Step 3: Cross multiply
    165,863.12x = 248,794.04 × 138,102.48
  4. Step 4: Simplify right side
    165,863.12x = 34,359,073,933.22
  5. Step 5: Solve for x
    x = 34,359,073,933.22/165,863.12
  6. Step 6: Final answer
    x = 207,153.19

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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.