Home / 189,039.39-283,092.21-140,892.56

Finding the Fourth Proportional to 189,039.39, 283,092.21 and 140,892.56

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Solution

The fourth proportional to 189,039.39, 283,092.21 and 140,892.56 is: 210,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,039.39 : 283,092.21 = 140,892.56 : x
  2. Step 2: Convert to fraction form
    189,039.39/283,092.21 = 140,892.56/x
  3. Step 3: Cross multiply
    189,039.39x = 283,092.21 × 140,892.56
  4. Step 4: Simplify right side
    189,039.39x = 39,885,586,182.96
  5. Step 5: Solve for x
    x = 39,885,586,182.96/189,039.39
  6. Step 6: Final answer
    x = 210,990.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.