Home / 86,612.68-119,608.04-81,895.43

Finding the Fourth Proportional to 86,612.68, 119,608.04 and 81,895.43

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Solution

The fourth proportional to 86,612.68, 119,608.04 and 81,895.43 is: 113,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,612.68 : 119,608.04 = 81,895.43 : x
  2. Step 2: Convert to fraction form
    86,612.68/119,608.04 = 81,895.43/x
  3. Step 3: Cross multiply
    86,612.68x = 119,608.04 × 81,895.43
  4. Step 4: Simplify right side
    86,612.68x = 9,795,351,867.26
  5. Step 5: Solve for x
    x = 9,795,351,867.26/86,612.68
  6. Step 6: Final answer
    x = 113,093.74

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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.