Home / 135,611.15-187,154.43-75,200.73

Finding the Fourth Proportional to 135,611.15, 187,154.43 and 75,200.73

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Solution

The fourth proportional to 135,611.15, 187,154.43 and 75,200.73 is: 103,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,611.15 : 187,154.43 = 75,200.73 : x
  2. Step 2: Convert to fraction form
    135,611.15/187,154.43 = 75,200.73/x
  3. Step 3: Cross multiply
    135,611.15x = 187,154.43 × 75,200.73
  4. Step 4: Simplify right side
    135,611.15x = 14,074,149,758.73
  5. Step 5: Solve for x
    x = 14,074,149,758.73/135,611.15
  6. Step 6: Final answer
    x = 103,783.13

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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.