Home / 155,399.48-214,267.86-106,364.78

Finding the Fourth Proportional to 155,399.48, 214,267.86 and 106,364.78

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Solution

The fourth proportional to 155,399.48, 214,267.86 and 106,364.78 is: 146,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,399.48 : 214,267.86 = 106,364.78 : x
  2. Step 2: Convert to fraction form
    155,399.48/214,267.86 = 106,364.78/x
  3. Step 3: Cross multiply
    155,399.48x = 214,267.86 × 106,364.78
  4. Step 4: Simplify right side
    155,399.48x = 22,790,553,789.97
  5. Step 5: Solve for x
    x = 22,790,553,789.97/155,399.48
  6. Step 6: Final answer
    x = 146,657.85

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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.