Home / 137,986.93-190,439.57-84,260.64

Finding the Fourth Proportional to 137,986.93, 190,439.57 and 84,260.64

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Solution

The fourth proportional to 137,986.93, 190,439.57 and 84,260.64 is: 116,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,986.93 : 190,439.57 = 84,260.64 : x
  2. Step 2: Convert to fraction form
    137,986.93/190,439.57 = 84,260.64/x
  3. Step 3: Cross multiply
    137,986.93x = 190,439.57 × 84,260.64
  4. Step 4: Simplify right side
    137,986.93x = 16,046,560,049.52
  5. Step 5: Solve for x
    x = 16,046,560,049.52/137,986.93
  6. Step 6: Final answer
    x = 116,290.43

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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.