Home / 345,734.22-518,481.32-121,089.66

Finding the Fourth Proportional to 345,734.22, 518,481.32 and 121,089.66

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Solution

The fourth proportional to 345,734.22, 518,481.32 and 121,089.66 is: 181,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,734.22 : 518,481.32 = 121,089.66 : x
  2. Step 2: Convert to fraction form
    345,734.22/518,481.32 = 121,089.66/x
  3. Step 3: Cross multiply
    345,734.22x = 518,481.32 × 121,089.66
  4. Step 4: Simplify right side
    345,734.22x = 62,782,726,755.15
  5. Step 5: Solve for x
    x = 62,782,726,755.15/345,734.22
  6. Step 6: Final answer
    x = 181,592.46

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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.