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Finding the Fourth Proportional to 125.37, 188.01 and 43.09

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Solution

The fourth proportional to 125.37, 188.01 and 43.09 is: 64.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.37 : 188.01 = 43.09 : x
  2. Step 2: Convert to fraction form
    125.37/188.01 = 43.09/x
  3. Step 3: Cross multiply
    125.37x = 188.01 × 43.09
  4. Step 4: Simplify right side
    125.37x = 8,102.06
  5. Step 5: Solve for x
    x = 8,102.06/125.37
  6. Step 6: Final answer
    x = 64.62

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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.