Home / 135,936.76-187,587.55-75,511.30

Finding the Fourth Proportional to 135,936.76, 187,587.55 and 75,511.30

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Solution

The fourth proportional to 135,936.76, 187,587.55 and 75,511.30 is: 104,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,936.76 : 187,587.55 = 75,511.30 : x
  2. Step 2: Convert to fraction form
    135,936.76/187,587.55 = 75,511.30/x
  3. Step 3: Cross multiply
    135,936.76x = 187,587.55 × 75,511.30
  4. Step 4: Simplify right side
    135,936.76x = 14,164,979,764.32
  5. Step 5: Solve for x
    x = 14,164,979,764.32/135,936.76
  6. Step 6: Final answer
    x = 104,202.72

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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.