Home / 92,568.96-138,183.36-81,359.04

Finding the Fourth Proportional to 92,568.96, 138,183.36 and 81,359.04

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Solution

The fourth proportional to 92,568.96, 138,183.36 and 81,359.04 is: 121,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,568.96 : 138,183.36 = 81,359.04 : x
  2. Step 2: Convert to fraction form
    92,568.96/138,183.36 = 81,359.04/x
  3. Step 3: Cross multiply
    92,568.96x = 138,183.36 × 81,359.04
  4. Step 4: Simplify right side
    92,568.96x = 11,242,465,513.57
  5. Step 5: Solve for x
    x = 11,242,465,513.57/92,568.96
  6. Step 6: Final answer
    x = 121,449.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.