Home / 312,161.22-468,242.10-75,504.15

Finding the Fourth Proportional to 312,161.22, 468,242.10 and 75,504.15

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Solution

The fourth proportional to 312,161.22, 468,242.10 and 75,504.15 is: 113,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,161.22 : 468,242.10 = 75,504.15 : x
  2. Step 2: Convert to fraction form
    312,161.22/468,242.10 = 75,504.15/x
  3. Step 3: Cross multiply
    312,161.22x = 468,242.10 × 75,504.15
  4. Step 4: Simplify right side
    312,161.22x = 35,354,221,754.72
  5. Step 5: Solve for x
    x = 35,354,221,754.72/312,161.22
  6. Step 6: Final answer
    x = 113,256.29

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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.