Home / 135,805.94-187,408.59-75,375.02

Finding the Fourth Proportional to 135,805.94, 187,408.59 and 75,375.02

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Solution

The fourth proportional to 135,805.94, 187,408.59 and 75,375.02 is: 104,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,805.94 : 187,408.59 = 75,375.02 : x
  2. Step 2: Convert to fraction form
    135,805.94/187,408.59 = 75,375.02/x
  3. Step 3: Cross multiply
    135,805.94x = 187,408.59 × 75,375.02
  4. Step 4: Simplify right side
    135,805.94x = 14,125,926,219.42
  5. Step 5: Solve for x
    x = 14,125,926,219.42/135,805.94
  6. Step 6: Final answer
    x = 104,015.53

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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.