Home / 137,046.84-188,979.18-106,778.52

Finding the Fourth Proportional to 137,046.84, 188,979.18 and 106,778.52

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Solution

The fourth proportional to 137,046.84, 188,979.18 and 106,778.52 is: 147,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,046.84 : 188,979.18 = 106,778.52 : x
  2. Step 2: Convert to fraction form
    137,046.84/188,979.18 = 106,778.52/x
  3. Step 3: Cross multiply
    137,046.84x = 188,979.18 × 106,778.52
  4. Step 4: Simplify right side
    137,046.84x = 20,178,917,151.21
  5. Step 5: Solve for x
    x = 20,178,917,151.21/137,046.84
  6. Step 6: Final answer
    x = 147,241.02

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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.