Home / 260,105.10-389,898.45-119,618.70

Finding the Fourth Proportional to 260,105.10, 389,898.45 and 119,618.70

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Solution

The fourth proportional to 260,105.10, 389,898.45 and 119,618.70 is: 179,308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,105.10 : 389,898.45 = 119,618.70 : x
  2. Step 2: Convert to fraction form
    260,105.10/389,898.45 = 119,618.70/x
  3. Step 3: Cross multiply
    260,105.10x = 389,898.45 × 119,618.70
  4. Step 4: Simplify right side
    260,105.10x = 46,639,145,721.02
  5. Step 5: Solve for x
    x = 46,639,145,721.02/260,105.10
  6. Step 6: Final answer
    x = 179,308.85

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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.