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Finding the Fourth Proportional to 106.50, 158.73 and 101.98

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Solution

The fourth proportional to 106.50, 158.73 and 101.98 is: 151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.50 : 158.73 = 101.98 : x
  2. Step 2: Convert to fraction form
    106.50/158.73 = 101.98/x
  3. Step 3: Cross multiply
    106.50x = 158.73 × 101.98
  4. Step 4: Simplify right side
    106.50x = 16,187.29
  5. Step 5: Solve for x
    x = 16,187.29/106.50
  6. Step 6: Final answer
    x = 151.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.