Home / 259,667.22-389,461.83-82,151.16

Finding the Fourth Proportional to 259,667.22, 389,461.83 and 82,151.16

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Solution

The fourth proportional to 259,667.22, 389,461.83 and 82,151.16 is: 123,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,667.22 : 389,461.83 = 82,151.16 : x
  2. Step 2: Convert to fraction form
    259,667.22/389,461.83 = 82,151.16/x
  3. Step 3: Cross multiply
    259,667.22x = 389,461.83 × 82,151.16
  4. Step 4: Simplify right side
    259,667.22x = 31,994,741,110.22
  5. Step 5: Solve for x
    x = 31,994,741,110.22/259,667.22
  6. Step 6: Final answer
    x = 123,214.40

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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.