Home / 259,859.68-389,788.92-101,977.72

Finding the Fourth Proportional to 259,859.68, 389,788.92 and 101,977.72

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Solution

The fourth proportional to 259,859.68, 389,788.92 and 101,977.72 is: 152,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,859.68 : 389,788.92 = 101,977.72 : x
  2. Step 2: Convert to fraction form
    259,859.68/389,788.92 = 101,977.72/x
  3. Step 3: Cross multiply
    259,859.68x = 389,788.92 × 101,977.72
  4. Step 4: Simplify right side
    259,859.68x = 39,749,785,342.86
  5. Step 5: Solve for x
    x = 39,749,785,342.86/259,859.68
  6. Step 6: Final answer
    x = 152,966.34

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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.