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Finding the Fourth Proportional to 116,700, 161,046 and 63,708

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Solution

The fourth proportional to 116,700, 161,046 and 63,708 is: 87,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,700 : 161,046 = 63,708 : x
  2. Step 2: Convert to fraction form
    116,700/161,046 = 63,708/x
  3. Step 3: Cross multiply
    116,700x = 161,046 × 63,708
  4. Step 4: Simplify right side
    116,700x = 10,259,918,568
  5. Step 5: Solve for x
    x = 10,259,918,568/116,700
  6. Step 6: Final answer
    x = 87,917.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.