Home / 259,743.51-389,654.21-91,234.14

Finding the Fourth Proportional to 259,743.51, 389,654.21 and 91,234.14

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Solution

The fourth proportional to 259,743.51, 389,654.21 and 91,234.14 is: 136,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,743.51 : 389,654.21 = 91,234.14 : x
  2. Step 2: Convert to fraction form
    259,743.51/389,654.21 = 91,234.14/x
  3. Step 3: Cross multiply
    259,743.51x = 389,654.21 × 91,234.14
  4. Step 4: Simplify right side
    259,743.51x = 35,549,765,513.61
  5. Step 5: Solve for x
    x = 35,549,765,513.61/259,743.51
  6. Step 6: Final answer
    x = 136,864.88

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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.