Home / 259,748.05-389,672.33-99,811.93

Finding the Fourth Proportional to 259,748.05, 389,672.33 and 99,811.93

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Solution

The fourth proportional to 259,748.05, 389,672.33 and 99,811.93 is: 149,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,748.05 : 389,672.33 = 99,811.93 : x
  2. Step 2: Convert to fraction form
    259,748.05/389,672.33 = 99,811.93/x
  3. Step 3: Cross multiply
    259,748.05x = 389,672.33 × 99,811.93
  4. Step 4: Simplify right side
    259,748.05x = 38,893,947,324.90
  5. Step 5: Solve for x
    x = 38,893,947,324.90/259,748.05
  6. Step 6: Final answer
    x = 149,737.21

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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.