Home / 120,476.36-166,257.54-66,019.88

Finding the Fourth Proportional to 120,476.36, 166,257.54 and 66,019.88

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Solution

The fourth proportional to 120,476.36, 166,257.54 and 66,019.88 is: 91,107.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,476.36 : 166,257.54 = 66,019.88 : x
  2. Step 2: Convert to fraction form
    120,476.36/166,257.54 = 66,019.88/x
  3. Step 3: Cross multiply
    120,476.36x = 166,257.54 × 66,019.88
  4. Step 4: Simplify right side
    120,476.36x = 10,976,302,839.90
  5. Step 5: Solve for x
    x = 10,976,302,839.90/120,476.36
  6. Step 6: Final answer
    x = 91,107.52

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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.