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Finding the Fourth Proportional to 155,676.50, 214,833.81 and 88,608.50

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Solution

The fourth proportional to 155,676.50, 214,833.81 and 88,608.50 is: 122,279.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,676.50 : 214,833.81 = 88,608.50 : x
  2. Step 2: Convert to fraction form
    155,676.50/214,833.81 = 88,608.50/x
  3. Step 3: Cross multiply
    155,676.50x = 214,833.81 × 88,608.50
  4. Step 4: Simplify right side
    155,676.50x = 19,036,101,653.39
  5. Step 5: Solve for x
    x = 19,036,101,653.39/155,676.50
  6. Step 6: Final answer
    x = 122,279.87

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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.