Home / 451,629.53-677,378.35-131,695.43

Finding the Fourth Proportional to 451,629.53, 677,378.35 and 131,695.43

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Solution

The fourth proportional to 451,629.53, 677,378.35 and 131,695.43 is: 197,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,629.53 : 677,378.35 = 131,695.43 : x
  2. Step 2: Convert to fraction form
    451,629.53/677,378.35 = 131,695.43/x
  3. Step 3: Cross multiply
    451,629.53x = 677,378.35 × 131,695.43
  4. Step 4: Simplify right side
    451,629.53x = 89,207,633,075.94
  5. Step 5: Solve for x
    x = 89,207,633,075.94/451,629.53
  6. Step 6: Final answer
    x = 197,523.92

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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.