Home / 117,768.48-162,517.02-66,785.87

Finding the Fourth Proportional to 117,768.48, 162,517.02 and 66,785.87

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Solution

The fourth proportional to 117,768.48, 162,517.02 and 66,785.87 is: 92,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,768.48 : 162,517.02 = 66,785.87 : x
  2. Step 2: Convert to fraction form
    117,768.48/162,517.02 = 66,785.87/x
  3. Step 3: Cross multiply
    117,768.48x = 162,517.02 × 66,785.87
  4. Step 4: Simplify right side
    117,768.48x = 10,853,839,757.92
  5. Step 5: Solve for x
    x = 10,853,839,757.92/117,768.48
  6. Step 6: Final answer
    x = 92,162.52

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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.