Home / 135,680.28-187,216.35-75,241.32

Finding the Fourth Proportional to 135,680.28, 187,216.35 and 75,241.32

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Solution

The fourth proportional to 135,680.28, 187,216.35 and 75,241.32 is: 103,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,680.28 : 187,216.35 = 75,241.32 : x
  2. Step 2: Convert to fraction form
    135,680.28/187,216.35 = 75,241.32/x
  3. Step 3: Cross multiply
    135,680.28x = 187,216.35 × 75,241.32
  4. Step 4: Simplify right side
    135,680.28x = 14,086,405,299.58
  5. Step 5: Solve for x
    x = 14,086,405,299.58/135,680.28
  6. Step 6: Final answer
    x = 103,820.58

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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.