Home / 252,458.37-378,707.73-83,972.61

Finding the Fourth Proportional to 252,458.37, 378,707.73 and 83,972.61

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Solution

The fourth proportional to 252,458.37, 378,707.73 and 83,972.61 is: 125,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,458.37 : 378,707.73 = 83,972.61 : x
  2. Step 2: Convert to fraction form
    252,458.37/378,707.73 = 83,972.61/x
  3. Step 3: Cross multiply
    252,458.37x = 378,707.73 × 83,972.61
  4. Step 4: Simplify right side
    252,458.37x = 31,801,076,515.28
  5. Step 5: Solve for x
    x = 31,801,076,515.28/252,458.37
  6. Step 6: Final answer
    x = 125,965.63

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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.