Home / 259,864.14-389,951.70-112,120.14

Finding the Fourth Proportional to 259,864.14, 389,951.70 and 112,120.14

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Solution

The fourth proportional to 259,864.14, 389,951.70 and 112,120.14 is: 168,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,864.14 : 389,951.70 = 112,120.14 : x
  2. Step 2: Convert to fraction form
    259,864.14/389,951.70 = 112,120.14/x
  3. Step 3: Cross multiply
    259,864.14x = 389,951.70 × 112,120.14
  4. Step 4: Simplify right side
    259,864.14x = 43,721,439,197.24
  5. Step 5: Solve for x
    x = 43,721,439,197.24/259,864.14
  6. Step 6: Final answer
    x = 168,247.30

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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.