Home / 117,268.95-161,839.25-71,346.51

Finding the Fourth Proportional to 117,268.95, 161,839.25 and 71,346.51

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Solution

The fourth proportional to 117,268.95, 161,839.25 and 71,346.51 is: 98,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.95 : 161,839.25 = 71,346.51 : x
  2. Step 2: Convert to fraction form
    117,268.95/161,839.25 = 71,346.51/x
  3. Step 3: Cross multiply
    117,268.95x = 161,839.25 × 71,346.51
  4. Step 4: Simplify right side
    117,268.95x = 11,546,665,311.78
  5. Step 5: Solve for x
    x = 11,546,665,311.78/117,268.95
  6. Step 6: Final answer
    x = 98,463.11

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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.