Home / 207,982.69-287,015.27-117,338.65

Finding the Fourth Proportional to 207,982.69, 287,015.27 and 117,338.65

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Solution

The fourth proportional to 207,982.69, 287,015.27 and 117,338.65 is: 161,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,982.69 : 287,015.27 = 117,338.65 : x
  2. Step 2: Convert to fraction form
    207,982.69/287,015.27 = 117,338.65/x
  3. Step 3: Cross multiply
    207,982.69x = 287,015.27 × 117,338.65
  4. Step 4: Simplify right side
    207,982.69x = 33,677,983,724.49
  5. Step 5: Solve for x
    x = 33,677,983,724.49/207,982.69
  6. Step 6: Final answer
    x = 161,926.86

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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.