Home / 134,882.80-186,212.82-81,181

Finding the Fourth Proportional to 134,882.80, 186,212.82 and 81,181

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Solution

The fourth proportional to 134,882.80, 186,212.82 and 81,181 is: 112,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,882.80 : 186,212.82 = 81,181 : x
  2. Step 2: Convert to fraction form
    134,882.80/186,212.82 = 81,181/x
  3. Step 3: Cross multiply
    134,882.80x = 186,212.82 × 81,181
  4. Step 4: Simplify right side
    134,882.80x = 15,116,942,940.42
  5. Step 5: Solve for x
    x = 15,116,942,940.42/134,882.80
  6. Step 6: Final answer
    x = 112,074.65

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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.