Home / 138,268.58-190,824.92-84,589.26

Finding the Fourth Proportional to 138,268.58, 190,824.92 and 84,589.26

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Solution

The fourth proportional to 138,268.58, 190,824.92 and 84,589.26 is: 116,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,268.58 : 190,824.92 = 84,589.26 : x
  2. Step 2: Convert to fraction form
    138,268.58/190,824.92 = 84,589.26/x
  3. Step 3: Cross multiply
    138,268.58x = 190,824.92 × 84,589.26
  4. Step 4: Simplify right side
    138,268.58x = 16,141,738,772.36
  5. Step 5: Solve for x
    x = 16,141,738,772.36/138,268.58
  6. Step 6: Final answer
    x = 116,741.91

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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.