Home / 188,907.23-260,681.78-108,338.15

Finding the Fourth Proportional to 188,907.23, 260,681.78 and 108,338.15

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Solution

The fourth proportional to 188,907.23, 260,681.78 and 108,338.15 is: 149,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,907.23 : 260,681.78 = 108,338.15 : x
  2. Step 2: Convert to fraction form
    188,907.23/260,681.78 = 108,338.15/x
  3. Step 3: Cross multiply
    188,907.23x = 260,681.78 × 108,338.15
  4. Step 4: Simplify right side
    188,907.23x = 28,241,781,783.91
  5. Step 5: Solve for x
    x = 28,241,781,783.91/188,907.23
  6. Step 6: Final answer
    x = 149,500.80

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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.