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Finding the Fourth Proportional to 141.64, 211.38 and 124.02

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Solution

The fourth proportional to 141.64, 211.38 and 124.02 is: 185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.64 : 211.38 = 124.02 : x
  2. Step 2: Convert to fraction form
    141.64/211.38 = 124.02/x
  3. Step 3: Cross multiply
    141.64x = 211.38 × 124.02
  4. Step 4: Simplify right side
    141.64x = 26,215.35
  5. Step 5: Solve for x
    x = 26,215.35/141.64
  6. Step 6: Final answer
    x = 185.08

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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.