Home / 135,801.08-187,405.56-75,371.75

Finding the Fourth Proportional to 135,801.08, 187,405.56 and 75,371.75

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Solution

The fourth proportional to 135,801.08, 187,405.56 and 75,371.75 is: 104,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,801.08 : 187,405.56 = 75,371.75 : x
  2. Step 2: Convert to fraction form
    135,801.08/187,405.56 = 75,371.75/x
  3. Step 3: Cross multiply
    135,801.08x = 187,405.56 × 75,371.75
  4. Step 4: Simplify right side
    135,801.08x = 14,125,085,016.93
  5. Step 5: Solve for x
    x = 14,125,085,016.93/135,801.08
  6. Step 6: Final answer
    x = 104,013.05

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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.