Home / 188,905.18-260,245.64-131,445.82

Finding the Fourth Proportional to 188,905.18, 260,245.64 and 131,445.82

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Solution

The fourth proportional to 188,905.18, 260,245.64 and 131,445.82 is: 181,086.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,905.18 : 260,245.64 = 131,445.82 : x
  2. Step 2: Convert to fraction form
    188,905.18/260,245.64 = 131,445.82/x
  3. Step 3: Cross multiply
    188,905.18x = 260,245.64 × 131,445.82
  4. Step 4: Simplify right side
    188,905.18x = 34,208,200,243.38
  5. Step 5: Solve for x
    x = 34,208,200,243.38/188,905.18
  6. Step 6: Final answer
    x = 181,086.62

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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.