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Finding the Fourth Proportional to 116.79, 175.29 and 55.97

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Solution

The fourth proportional to 116.79, 175.29 and 55.97 is: 84.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.79 : 175.29 = 55.97 : x
  2. Step 2: Convert to fraction form
    116.79/175.29 = 55.97/x
  3. Step 3: Cross multiply
    116.79x = 175.29 × 55.97
  4. Step 4: Simplify right side
    116.79x = 9,810.22
  5. Step 5: Solve for x
    x = 9,810.22/116.79
  6. Step 6: Final answer
    x = 84.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.