Home / 208,789.04-288,134.42-113,295.78

Finding the Fourth Proportional to 208,789.04, 288,134.42 and 113,295.78

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Solution

The fourth proportional to 208,789.04, 288,134.42 and 113,295.78 is: 156,351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,789.04 : 288,134.42 = 113,295.78 : x
  2. Step 2: Convert to fraction form
    208,789.04/288,134.42 = 113,295.78/x
  3. Step 3: Cross multiply
    208,789.04x = 288,134.42 × 113,295.78
  4. Step 4: Simplify right side
    208,789.04x = 32,644,413,292.27
  5. Step 5: Solve for x
    x = 32,644,413,292.27/208,789.04
  6. Step 6: Final answer
    x = 156,351.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.