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Finding the Fourth Proportional to 101.75, 152.35 and 56.03

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Solution

The fourth proportional to 101.75, 152.35 and 56.03 is: 83.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.75 : 152.35 = 56.03 : x
  2. Step 2: Convert to fraction form
    101.75/152.35 = 56.03/x
  3. Step 3: Cross multiply
    101.75x = 152.35 × 56.03
  4. Step 4: Simplify right side
    101.75x = 8,535.27
  5. Step 5: Solve for x
    x = 8,535.27/101.75
  6. Step 6: Final answer
    x = 83.89

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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.