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Finding the Fourth Proportional to 188,538.69, 260,109.78 and 107,923.14

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Solution

The fourth proportional to 188,538.69, 260,109.78 and 107,923.14 is: 148,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,538.69 : 260,109.78 = 107,923.14 : x
  2. Step 2: Convert to fraction form
    188,538.69/260,109.78 = 107,923.14/x
  3. Step 3: Cross multiply
    188,538.69x = 260,109.78 × 107,923.14
  4. Step 4: Simplify right side
    188,538.69x = 28,071,864,202.31
  5. Step 5: Solve for x
    x = 28,071,864,202.31/188,538.69
  6. Step 6: Final answer
    x = 148,891.80

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1.5x scale

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.