Home / 117,928.80-162,464.88-82,057.20

Finding the Fourth Proportional to 117,928.80, 162,464.88 and 82,057.20

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Solution

The fourth proportional to 117,928.80, 162,464.88 and 82,057.20 is: 113,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,928.80 : 162,464.88 = 82,057.20 : x
  2. Step 2: Convert to fraction form
    117,928.80/162,464.88 = 82,057.20/x
  3. Step 3: Cross multiply
    117,928.80x = 162,464.88 × 82,057.20
  4. Step 4: Simplify right side
    117,928.80x = 13,331,413,151.14
  5. Step 5: Solve for x
    x = 13,331,413,151.14/117,928.80
  6. Step 6: Final answer
    x = 113,046.29

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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.