Home / 117,961.20-162,788.40-64,247.27

Finding the Fourth Proportional to 117,961.20, 162,788.40 and 64,247.27

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Solution

The fourth proportional to 117,961.20, 162,788.40 and 64,247.27 is: 88,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.20 : 162,788.40 = 64,247.27 : x
  2. Step 2: Convert to fraction form
    117,961.20/162,788.40 = 64,247.27/x
  3. Step 3: Cross multiply
    117,961.20x = 162,788.40 × 64,247.27
  4. Step 4: Simplify right side
    117,961.20x = 10,458,709,473.73
  5. Step 5: Solve for x
    x = 10,458,709,473.73/117,961.20
  6. Step 6: Final answer
    x = 88,662.28

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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.