Home / 133,272.41-183,910.88-72,842.55

Finding the Fourth Proportional to 133,272.41, 183,910.88 and 72,842.55

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Solution

The fourth proportional to 133,272.41, 183,910.88 and 72,842.55 is: 100,519.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,272.41 : 183,910.88 = 72,842.55 : x
  2. Step 2: Convert to fraction form
    133,272.41/183,910.88 = 72,842.55/x
  3. Step 3: Cross multiply
    133,272.41x = 183,910.88 × 72,842.55
  4. Step 4: Simplify right side
    133,272.41x = 13,396,537,107.73
  5. Step 5: Solve for x
    x = 13,396,537,107.73/133,272.41
  6. Step 6: Final answer
    x = 100,519.96

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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.