Home / 117,372.28-161,956.38-66,371.44

Finding the Fourth Proportional to 117,372.28, 161,956.38 and 66,371.44

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Solution

The fourth proportional to 117,372.28, 161,956.38 and 66,371.44 is: 91,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,372.28 : 161,956.38 = 66,371.44 : x
  2. Step 2: Convert to fraction form
    117,372.28/161,956.38 = 66,371.44/x
  3. Step 3: Cross multiply
    117,372.28x = 161,956.38 × 66,371.44
  4. Step 4: Simplify right side
    117,372.28x = 10,749,278,157.79
  5. Step 5: Solve for x
    x = 10,749,278,157.79/117,372.28
  6. Step 6: Final answer
    x = 91,582.77

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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.