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Finding the Fourth Proportional to 125.64, 187.61 and 101.34

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Solution

The fourth proportional to 125.64, 187.61 and 101.34 is: 151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.64 : 187.61 = 101.34 : x
  2. Step 2: Convert to fraction form
    125.64/187.61 = 101.34/x
  3. Step 3: Cross multiply
    125.64x = 187.61 × 101.34
  4. Step 4: Simplify right side
    125.64x = 19,011.89
  5. Step 5: Solve for x
    x = 19,011.89/125.64
  6. Step 6: Final answer
    x = 151.32

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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.