Home / 259,674.12-389,554.24-91,150.72

Finding the Fourth Proportional to 259,674.12, 389,554.24 and 91,150.72

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Solution

The fourth proportional to 259,674.12, 389,554.24 and 91,150.72 is: 136,741.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,674.12 : 389,554.24 = 91,150.72 : x
  2. Step 2: Convert to fraction form
    259,674.12/389,554.24 = 91,150.72/x
  3. Step 3: Cross multiply
    259,674.12x = 389,554.24 × 91,150.72
  4. Step 4: Simplify right side
    259,674.12x = 35,508,149,455.05
  5. Step 5: Solve for x
    x = 35,508,149,455.05/259,674.12
  6. Step 6: Final answer
    x = 136,741.19

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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.