Home / 259,747.30-389,671.17-99,811.18

Finding the Fourth Proportional to 259,747.30, 389,671.17 and 99,811.18

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Solution

The fourth proportional to 259,747.30, 389,671.17 and 99,811.18 is: 149,736.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.30 : 389,671.17 = 99,811.18 : x
  2. Step 2: Convert to fraction form
    259,747.30/389,671.17 = 99,811.18/x
  3. Step 3: Cross multiply
    259,747.30x = 389,671.17 × 99,811.18
  4. Step 4: Simplify right side
    259,747.30x = 38,893,539,289.68
  5. Step 5: Solve for x
    x = 38,893,539,289.68/259,747.30
  6. Step 6: Final answer
    x = 149,736.07

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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.