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Finding the Fourth Proportional to 170.86, 236 and 126.69

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Solution

The fourth proportional to 170.86, 236 and 126.69 is: 174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.86 : 236 = 126.69 : x
  2. Step 2: Convert to fraction form
    170.86/236 = 126.69/x
  3. Step 3: Cross multiply
    170.86x = 236 × 126.69
  4. Step 4: Simplify right side
    170.86x = 29,898.84
  5. Step 5: Solve for x
    x = 29,898.84/170.86
  6. Step 6: Final answer
    x = 174.99

Related Problems

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1.5x scale

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.