Home / 120,233.44-165,918.52-66,515.32

Finding the Fourth Proportional to 120,233.44, 165,918.52 and 66,515.32

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Solution

The fourth proportional to 120,233.44, 165,918.52 and 66,515.32 is: 91,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,233.44 : 165,918.52 = 66,515.32 : x
  2. Step 2: Convert to fraction form
    120,233.44/165,918.52 = 66,515.32/x
  3. Step 3: Cross multiply
    120,233.44x = 165,918.52 × 66,515.32
  4. Step 4: Simplify right side
    120,233.44x = 11,036,123,451.73
  5. Step 5: Solve for x
    x = 11,036,123,451.73/120,233.44
  6. Step 6: Final answer
    x = 91,789.13

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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.