Home / 131,991.73-182,148-71,562.18

Finding the Fourth Proportional to 131,991.73, 182,148 and 71,562.18

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Solution

The fourth proportional to 131,991.73, 182,148 and 71,562.18 is: 98,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,991.73 : 182,148 = 71,562.18 : x
  2. Step 2: Convert to fraction form
    131,991.73/182,148 = 71,562.18/x
  3. Step 3: Cross multiply
    131,991.73x = 182,148 × 71,562.18
  4. Step 4: Simplify right side
    131,991.73x = 13,034,907,962.64
  5. Step 5: Solve for x
    x = 13,034,907,962.64/131,991.73
  6. Step 6: Final answer
    x = 98,755.49

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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.