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Finding the Fourth Proportional to 125.70, 188.44 and 60.66

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Solution

The fourth proportional to 125.70, 188.44 and 60.66 is: 90.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.70 : 188.44 = 60.66 : x
  2. Step 2: Convert to fraction form
    125.70/188.44 = 60.66/x
  3. Step 3: Cross multiply
    125.70x = 188.44 × 60.66
  4. Step 4: Simplify right side
    125.70x = 11,430.77
  5. Step 5: Solve for x
    x = 11,430.77/125.70
  6. Step 6: Final answer
    x = 90.94

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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.