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Finding the Fourth Proportional to 100.74, 151.01 and 62.22

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Solution

The fourth proportional to 100.74, 151.01 and 62.22 is: 93.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.74 : 151.01 = 62.22 : x
  2. Step 2: Convert to fraction form
    100.74/151.01 = 62.22/x
  3. Step 3: Cross multiply
    100.74x = 151.01 × 62.22
  4. Step 4: Simplify right side
    100.74x = 9,395.84
  5. Step 5: Solve for x
    x = 9,395.84/100.74
  6. Step 6: Final answer
    x = 93.27

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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.