Home / 219,723.76-303,251.11-139,158.79

Finding the Fourth Proportional to 219,723.76, 303,251.11 and 139,158.79

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Solution

The fourth proportional to 219,723.76, 303,251.11 and 139,158.79 is: 192,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,723.76 : 303,251.11 = 139,158.79 : x
  2. Step 2: Convert to fraction form
    219,723.76/303,251.11 = 139,158.79/x
  3. Step 3: Cross multiply
    219,723.76x = 303,251.11 × 139,158.79
  4. Step 4: Simplify right side
    219,723.76x = 42,200,056,427.73
  5. Step 5: Solve for x
    x = 42,200,056,427.73/219,723.76
  6. Step 6: Final answer
    x = 192,059.59

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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.