Home / 83,458.22-115,105.32-73,365.20

Finding the Fourth Proportional to 83,458.22, 115,105.32 and 73,365.20

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Solution

The fourth proportional to 83,458.22, 115,105.32 and 73,365.20 is: 101,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,458.22 : 115,105.32 = 73,365.20 : x
  2. Step 2: Convert to fraction form
    83,458.22/115,105.32 = 73,365.20/x
  3. Step 3: Cross multiply
    83,458.22x = 115,105.32 × 73,365.20
  4. Step 4: Simplify right side
    83,458.22x = 8,444,724,822.86
  5. Step 5: Solve for x
    x = 8,444,724,822.86/83,458.22
  6. Step 6: Final answer
    x = 101,185.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.