Home / 135,821.96-187,435.94-75,393.80

Finding the Fourth Proportional to 135,821.96, 187,435.94 and 75,393.80

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Solution

The fourth proportional to 135,821.96, 187,435.94 and 75,393.80 is: 104,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,821.96 : 187,435.94 = 75,393.80 : x
  2. Step 2: Convert to fraction form
    135,821.96/187,435.94 = 75,393.80/x
  3. Step 3: Cross multiply
    135,821.96x = 187,435.94 × 75,393.80
  4. Step 4: Simplify right side
    135,821.96x = 14,131,507,773.17
  5. Step 5: Solve for x
    x = 14,131,507,773.17/135,821.96
  6. Step 6: Final answer
    x = 104,044.35

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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.