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Finding the Fourth Proportional to 125.00, 188.52 and 123.63

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Solution

The fourth proportional to 125.00, 188.52 and 123.63 is: 186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.00 : 188.52 = 123.63 : x
  2. Step 2: Convert to fraction form
    125.00/188.52 = 123.63/x
  3. Step 3: Cross multiply
    125.00x = 188.52 × 123.63
  4. Step 4: Simplify right side
    125.00x = 23,306.26
  5. Step 5: Solve for x
    x = 23,306.26/125.00
  6. Step 6: Final answer
    x = 186.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.