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Finding the Fourth Proportional to 116.10, 160.18 and 88.43

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Solution

The fourth proportional to 116.10, 160.18 and 88.43 is: 122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.10 : 160.18 = 88.43 : x
  2. Step 2: Convert to fraction form
    116.10/160.18 = 88.43/x
  3. Step 3: Cross multiply
    116.10x = 160.18 × 88.43
  4. Step 4: Simplify right side
    116.10x = 14,163.70
  5. Step 5: Solve for x
    x = 14,163.70/116.10
  6. Step 6: Final answer
    x = 122.00

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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.