Home / 115,243.07-172,824.62-40,361.55

Finding the Fourth Proportional to 115,243.07, 172,824.62 and 40,361.55

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Solution

The fourth proportional to 115,243.07, 172,824.62 and 40,361.55 is: 60,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,243.07 : 172,824.62 = 40,361.55 : x
  2. Step 2: Convert to fraction form
    115,243.07/172,824.62 = 40,361.55/x
  3. Step 3: Cross multiply
    115,243.07x = 172,824.62 × 40,361.55
  4. Step 4: Simplify right side
    115,243.07x = 6,975,469,339.55
  5. Step 5: Solve for x
    x = 6,975,469,339.55/115,243.07
  6. Step 6: Final answer
    x = 60,528.32

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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.