Home / 188,087.20-281,913.45-86,673.24

Finding the Fourth Proportional to 188,087.20, 281,913.45 and 86,673.24

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Solution

The fourth proportional to 188,087.20, 281,913.45 and 86,673.24 is: 129,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,087.20 : 281,913.45 = 86,673.24 : x
  2. Step 2: Convert to fraction form
    188,087.20/281,913.45 = 86,673.24/x
  3. Step 3: Cross multiply
    188,087.20x = 281,913.45 × 86,673.24
  4. Step 4: Simplify right side
    188,087.20x = 24,434,351,786.05
  5. Step 5: Solve for x
    x = 24,434,351,786.05/188,087.20
  6. Step 6: Final answer
    x = 129,909.70

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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.