Home / 117,110.43-161,613.51-68,713.18

Finding the Fourth Proportional to 117,110.43, 161,613.51 and 68,713.18

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Solution

The fourth proportional to 117,110.43, 161,613.51 and 68,713.18 is: 94,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,110.43 : 161,613.51 = 68,713.18 : x
  2. Step 2: Convert to fraction form
    117,110.43/161,613.51 = 68,713.18/x
  3. Step 3: Cross multiply
    117,110.43x = 161,613.51 × 68,713.18
  4. Step 4: Simplify right side
    117,110.43x = 11,104,978,270.80
  5. Step 5: Solve for x
    x = 11,104,978,270.80/117,110.43
  6. Step 6: Final answer
    x = 94,824.84

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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.