Home / 115,382.24-172,998.96-45,268.64

Finding the Fourth Proportional to 115,382.24, 172,998.96 and 45,268.64

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Solution

The fourth proportional to 115,382.24, 172,998.96 and 45,268.64 is: 67,873.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,382.24 : 172,998.96 = 45,268.64 : x
  2. Step 2: Convert to fraction form
    115,382.24/172,998.96 = 45,268.64/x
  3. Step 3: Cross multiply
    115,382.24x = 172,998.96 × 45,268.64
  4. Step 4: Simplify right side
    115,382.24x = 7,831,427,640.61
  5. Step 5: Solve for x
    x = 7,831,427,640.61/115,382.24
  6. Step 6: Final answer
    x = 67,873.77

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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.