Home / 117,112.42-161,609.01-68,707.62

Finding the Fourth Proportional to 117,112.42, 161,609.01 and 68,707.62

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Solution

The fourth proportional to 117,112.42, 161,609.01 and 68,707.62 is: 94,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.42 : 161,609.01 = 68,707.62 : x
  2. Step 2: Convert to fraction form
    117,112.42/161,609.01 = 68,707.62/x
  3. Step 3: Cross multiply
    117,112.42x = 161,609.01 × 68,707.62
  4. Step 4: Simplify right side
    117,112.42x = 11,103,770,025.34
  5. Step 5: Solve for x
    x = 11,103,770,025.34/117,112.42
  6. Step 6: Final answer
    x = 94,812.92

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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.