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Finding the Fourth Proportional to 126,903, 190,355.82 and 52,003.92

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Solution

The fourth proportional to 126,903, 190,355.82 and 52,003.92 is: 78,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,903 : 190,355.82 = 52,003.92 : x
  2. Step 2: Convert to fraction form
    126,903/190,355.82 = 52,003.92/x
  3. Step 3: Cross multiply
    126,903x = 190,355.82 × 52,003.92
  4. Step 4: Simplify right side
    126,903x = 9,899,248,834.81
  5. Step 5: Solve for x
    x = 9,899,248,834.81/126,903
  6. Step 6: Final answer
    x = 78,006.42

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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.