Home / 135,833.05-187,441.19-75,400.17

Finding the Fourth Proportional to 135,833.05, 187,441.19 and 75,400.17

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Solution

The fourth proportional to 135,833.05, 187,441.19 and 75,400.17 is: 104,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,833.05 : 187,441.19 = 75,400.17 : x
  2. Step 2: Convert to fraction form
    135,833.05/187,441.19 = 75,400.17/x
  3. Step 3: Cross multiply
    135,833.05x = 187,441.19 × 75,400.17
  4. Step 4: Simplify right side
    135,833.05x = 14,133,096,793.85
  5. Step 5: Solve for x
    x = 14,133,096,793.85/135,833.05
  6. Step 6: Final answer
    x = 104,047.55

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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.