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Finding the Fourth Proportional to 157.06, 235.18 and 126.07

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Solution

The fourth proportional to 157.06, 235.18 and 126.07 is: 188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.06 : 235.18 = 126.07 : x
  2. Step 2: Convert to fraction form
    157.06/235.18 = 126.07/x
  3. Step 3: Cross multiply
    157.06x = 235.18 × 126.07
  4. Step 4: Simplify right side
    157.06x = 29,648.69
  5. Step 5: Solve for x
    x = 29,648.69/157.06
  6. Step 6: Final answer
    x = 188.77

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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.