Home / 135,808.90-187,414.44-75,379.36

Finding the Fourth Proportional to 135,808.90, 187,414.44 and 75,379.36

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Solution

The fourth proportional to 135,808.90, 187,414.44 and 75,379.36 is: 104,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,808.90 : 187,414.44 = 75,379.36 : x
  2. Step 2: Convert to fraction form
    135,808.90/187,414.44 = 75,379.36/x
  3. Step 3: Cross multiply
    135,808.90x = 187,414.44 × 75,379.36
  4. Step 4: Simplify right side
    135,808.90x = 14,127,180,541.96
  5. Step 5: Solve for x
    x = 14,127,180,541.96/135,808.90
  6. Step 6: Final answer
    x = 104,022.49

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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.