Home / 135,670.58-187,213.03-75,241.04

Finding the Fourth Proportional to 135,670.58, 187,213.03 and 75,241.04

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Solution

The fourth proportional to 135,670.58, 187,213.03 and 75,241.04 is: 103,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,670.58 : 187,213.03 = 75,241.04 : x
  2. Step 2: Convert to fraction form
    135,670.58/187,213.03 = 75,241.04/x
  3. Step 3: Cross multiply
    135,670.58x = 187,213.03 × 75,241.04
  4. Step 4: Simplify right side
    135,670.58x = 14,086,103,078.75
  5. Step 5: Solve for x
    x = 14,086,103,078.75/135,670.58
  6. Step 6: Final answer
    x = 103,825.77

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1.5x scale

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.