Home / 138,785.44-208,206.96-55,685.92

Finding the Fourth Proportional to 138,785.44, 208,206.96 and 55,685.92

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Solution

The fourth proportional to 138,785.44, 208,206.96 and 55,685.92 is: 83,540.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,785.44 : 208,206.96 = 55,685.92 : x
  2. Step 2: Convert to fraction form
    138,785.44/208,206.96 = 55,685.92/x
  3. Step 3: Cross multiply
    138,785.44x = 208,206.96 × 55,685.92
  4. Step 4: Simplify right side
    138,785.44x = 11,594,196,118.00
  5. Step 5: Solve for x
    x = 11,594,196,118.00/138,785.44
  6. Step 6: Final answer
    x = 83,540.44

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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.