Home / 126.14-174.08-70.89

Finding the Fourth Proportional to 126.14, 174.08 and 70.89

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Solution

The fourth proportional to 126.14, 174.08 and 70.89 is: 97.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.14 : 174.08 = 70.89 : x
  2. Step 2: Convert to fraction form
    126.14/174.08 = 70.89/x
  3. Step 3: Cross multiply
    126.14x = 174.08 × 70.89
  4. Step 4: Simplify right side
    126.14x = 12,339.31
  5. Step 5: Solve for x
    x = 12,339.31/126.14
  6. Step 6: Final answer
    x = 97.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.