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Finding the Fourth Proportional to 157,336.90, 217,232.25 and 120,974.38

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Solution

The fourth proportional to 157,336.90, 217,232.25 and 120,974.38 is: 167,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,336.90 : 217,232.25 = 120,974.38 : x
  2. Step 2: Convert to fraction form
    157,336.90/217,232.25 = 120,974.38/x
  3. Step 3: Cross multiply
    157,336.90x = 217,232.25 × 120,974.38
  4. Step 4: Simplify right side
    157,336.90x = 26,279,536,759.76
  5. Step 5: Solve for x
    x = 26,279,536,759.76/157,336.90
  6. Step 6: Final answer
    x = 167,027.17

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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.