Home / 135,615.15-187,153.34-75,191.42

Finding the Fourth Proportional to 135,615.15, 187,153.34 and 75,191.42

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Solution

The fourth proportional to 135,615.15, 187,153.34 and 75,191.42 is: 103,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,615.15 : 187,153.34 = 75,191.42 : x
  2. Step 2: Convert to fraction form
    135,615.15/187,153.34 = 75,191.42/x
  3. Step 3: Cross multiply
    135,615.15x = 187,153.34 × 75,191.42
  4. Step 4: Simplify right side
    135,615.15x = 14,072,324,080.62
  5. Step 5: Solve for x
    x = 14,072,324,080.62/135,615.15
  6. Step 6: Final answer
    x = 103,766.61

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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.