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Finding the Fourth Proportional to 101.07, 151.55 and 40.16

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Solution

The fourth proportional to 101.07, 151.55 and 40.16 is: 60.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.07 : 151.55 = 40.16 : x
  2. Step 2: Convert to fraction form
    101.07/151.55 = 40.16/x
  3. Step 3: Cross multiply
    101.07x = 151.55 × 40.16
  4. Step 4: Simplify right side
    101.07x = 6,085.29
  5. Step 5: Solve for x
    x = 6,085.29/101.07
  6. Step 6: Final answer
    x = 60.21

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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.