Home / 260,132.72-390,199.23-73,144.22

Finding the Fourth Proportional to 260,132.72, 390,199.23 and 73,144.22

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Solution

The fourth proportional to 260,132.72, 390,199.23 and 73,144.22 is: 109,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,132.72 : 390,199.23 = 73,144.22 : x
  2. Step 2: Convert to fraction form
    260,132.72/390,199.23 = 73,144.22/x
  3. Step 3: Cross multiply
    260,132.72x = 390,199.23 × 73,144.22
  4. Step 4: Simplify right side
    260,132.72x = 28,540,816,371.95
  5. Step 5: Solve for x
    x = 28,540,816,371.95/260,132.72
  6. Step 6: Final answer
    x = 109,716.37

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1.5x scale

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.