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Finding the Fourth Proportional to 116.46, 160.63 and 88.90

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Solution

The fourth proportional to 116.46, 160.63 and 88.90 is: 122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.46 : 160.63 = 88.90 : x
  2. Step 2: Convert to fraction form
    116.46/160.63 = 88.90/x
  3. Step 3: Cross multiply
    116.46x = 160.63 × 88.90
  4. Step 4: Simplify right side
    116.46x = 14,279.88
  5. Step 5: Solve for x
    x = 14,279.88/116.46
  6. Step 6: Final answer
    x = 122.61

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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.