Home / 218,789.75-301,930.13-118,187.75

Finding the Fourth Proportional to 218,789.75, 301,930.13 and 118,187.75

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Solution

The fourth proportional to 218,789.75, 301,930.13 and 118,187.75 is: 163,099.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,789.75 : 301,930.13 = 118,187.75 : x
  2. Step 2: Convert to fraction form
    218,789.75/301,930.13 = 118,187.75/x
  3. Step 3: Cross multiply
    218,789.75x = 301,930.13 × 118,187.75
  4. Step 4: Simplify right side
    218,789.75x = 35,684,442,721.91
  5. Step 5: Solve for x
    x = 35,684,442,721.91/218,789.75
  6. Step 6: Final answer
    x = 163,099.24

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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.