Home / 99,840.97-137,546.40-69,571.37

Finding the Fourth Proportional to 99,840.97, 137,546.40 and 69,571.37

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Solution

The fourth proportional to 99,840.97, 137,546.40 and 69,571.37 is: 95,845.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,840.97 : 137,546.40 = 69,571.37 : x
  2. Step 2: Convert to fraction form
    99,840.97/137,546.40 = 69,571.37/x
  3. Step 3: Cross multiply
    99,840.97x = 137,546.40 × 69,571.37
  4. Step 4: Simplify right side
    99,840.97x = 9,569,292,091.33
  5. Step 5: Solve for x
    x = 9,569,292,091.33/99,840.97
  6. Step 6: Final answer
    x = 95,845.34

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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.