Home / 145,309.80-217,967.44-40,131.56

Finding the Fourth Proportional to 145,309.80, 217,967.44 and 40,131.56

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Solution

The fourth proportional to 145,309.80, 217,967.44 and 40,131.56 is: 60,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,309.80 : 217,967.44 = 40,131.56 : x
  2. Step 2: Convert to fraction form
    145,309.80/217,967.44 = 40,131.56/x
  3. Step 3: Cross multiply
    145,309.80x = 217,967.44 × 40,131.56
  4. Step 4: Simplify right side
    145,309.80x = 8,747,373,396.41
  5. Step 5: Solve for x
    x = 8,747,373,396.41/145,309.80
  6. Step 6: Final answer
    x = 60,198.10

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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.