Home / 117,086.42-161,583.18-71,755.65

Finding the Fourth Proportional to 117,086.42, 161,583.18 and 71,755.65

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Solution

The fourth proportional to 117,086.42, 161,583.18 and 71,755.65 is: 99,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,086.42 : 161,583.18 = 71,755.65 : x
  2. Step 2: Convert to fraction form
    117,086.42/161,583.18 = 71,755.65/x
  3. Step 3: Cross multiply
    117,086.42x = 161,583.18 × 71,755.65
  4. Step 4: Simplify right side
    117,086.42x = 11,594,505,840.88
  5. Step 5: Solve for x
    x = 11,594,505,840.88/117,086.42
  6. Step 6: Final answer
    x = 99,025.20

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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.