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Finding the Fourth Proportional to 145.01, 200.01 and 92.56

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Solution

The fourth proportional to 145.01, 200.01 and 92.56 is: 127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.01 : 200.01 = 92.56 : x
  2. Step 2: Convert to fraction form
    145.01/200.01 = 92.56/x
  3. Step 3: Cross multiply
    145.01x = 200.01 × 92.56
  4. Step 4: Simplify right side
    145.01x = 18,511.93
  5. Step 5: Solve for x
    x = 18,511.93/145.01
  6. Step 6: Final answer
    x = 127.66

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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.