Home / 259,673.11-389,552.73-91,149.72

Finding the Fourth Proportional to 259,673.11, 389,552.73 and 91,149.72

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Solution

The fourth proportional to 259,673.11, 389,552.73 and 91,149.72 is: 136,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,673.11 : 389,552.73 = 91,149.72 : x
  2. Step 2: Convert to fraction form
    259,673.11/389,552.73 = 91,149.72/x
  3. Step 3: Cross multiply
    259,673.11x = 389,552.73 × 91,149.72
  4. Step 4: Simplify right side
    259,673.11x = 35,507,622,264.74
  5. Step 5: Solve for x
    x = 35,507,622,264.74/259,673.11
  6. Step 6: Final answer
    x = 136,739.70

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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.