Home / 383,790.12-575,681.13-131,067.72

Finding the Fourth Proportional to 383,790.12, 575,681.13 and 131,067.72

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Solution

The fourth proportional to 383,790.12, 575,681.13 and 131,067.72 is: 196,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,790.12 : 575,681.13 = 131,067.72 : x
  2. Step 2: Convert to fraction form
    383,790.12/575,681.13 = 131,067.72/x
  3. Step 3: Cross multiply
    383,790.12x = 575,681.13 × 131,067.72
  4. Step 4: Simplify right side
    383,790.12x = 75,453,213,156.12
  5. Step 5: Solve for x
    x = 75,453,213,156.12/383,790.12
  6. Step 6: Final answer
    x = 196,600.20

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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.