Home / 195,988.11-270,468.87-115,400.80

Finding the Fourth Proportional to 195,988.11, 270,468.87 and 115,400.80

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Solution

The fourth proportional to 195,988.11, 270,468.87 and 115,400.80 is: 159,256.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,988.11 : 270,468.87 = 115,400.80 : x
  2. Step 2: Convert to fraction form
    195,988.11/270,468.87 = 115,400.80/x
  3. Step 3: Cross multiply
    195,988.11x = 270,468.87 × 115,400.80
  4. Step 4: Simplify right side
    195,988.11x = 31,212,324,527.56
  5. Step 5: Solve for x
    x = 31,212,324,527.56/195,988.11
  6. Step 6: Final answer
    x = 159,256.22

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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.