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Finding the Fourth Proportional to 117,204.89, 161,743.52 and 63,489.91

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Solution

The fourth proportional to 117,204.89, 161,743.52 and 63,489.91 is: 87,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,204.89 : 161,743.52 = 63,489.91 : x
  2. Step 2: Convert to fraction form
    117,204.89/161,743.52 = 63,489.91/x
  3. Step 3: Cross multiply
    117,204.89x = 161,743.52 × 63,489.91
  4. Step 4: Simplify right side
    117,204.89x = 10,269,080,719.17
  5. Step 5: Solve for x
    x = 10,269,080,719.17/117,204.89
  6. Step 6: Final answer
    x = 87,616.49

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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.