Home / 201,863.40-302,467.05-126,849.30

Finding the Fourth Proportional to 201,863.40, 302,467.05 and 126,849.30

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Solution

The fourth proportional to 201,863.40, 302,467.05 and 126,849.30 is: 190,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,863.40 : 302,467.05 = 126,849.30 : x
  2. Step 2: Convert to fraction form
    201,863.40/302,467.05 = 126,849.30/x
  3. Step 3: Cross multiply
    201,863.40x = 302,467.05 × 126,849.30
  4. Step 4: Simplify right side
    201,863.40x = 38,367,733,565.57
  5. Step 5: Solve for x
    x = 38,367,733,565.57/201,863.40
  6. Step 6: Final answer
    x = 190,067.81

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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.