Home / 117,268.20-161,838.21-71,345.75

Finding the Fourth Proportional to 117,268.20, 161,838.21 and 71,345.75

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Solution

The fourth proportional to 117,268.20, 161,838.21 and 71,345.75 is: 98,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.20 : 161,838.21 = 71,345.75 : x
  2. Step 2: Convert to fraction form
    117,268.20/161,838.21 = 71,345.75/x
  3. Step 3: Cross multiply
    117,268.20x = 161,838.21 × 71,345.75
  4. Step 4: Simplify right side
    117,268.20x = 11,546,467,661.92
  5. Step 5: Solve for x
    x = 11,546,467,661.92/117,268.20
  6. Step 6: Final answer
    x = 98,462.05

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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.