Home / 195,642.11-269,973.14-108,421.35

Finding the Fourth Proportional to 195,642.11, 269,973.14 and 108,421.35

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Solution

The fourth proportional to 195,642.11, 269,973.14 and 108,421.35 is: 149,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,642.11 : 269,973.14 = 108,421.35 : x
  2. Step 2: Convert to fraction form
    195,642.11/269,973.14 = 108,421.35/x
  3. Step 3: Cross multiply
    195,642.11x = 269,973.14 × 108,421.35
  4. Step 4: Simplify right side
    195,642.11x = 29,270,851,760.43
  5. Step 5: Solve for x
    x = 29,270,851,760.43/195,642.11
  6. Step 6: Final answer
    x = 149,614.28

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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.