Home / 189,563.05-261,596.64-109,006.12

Finding the Fourth Proportional to 189,563.05, 261,596.64 and 109,006.12

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Solution

The fourth proportional to 189,563.05, 261,596.64 and 109,006.12 is: 150,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,563.05 : 261,596.64 = 109,006.12 : x
  2. Step 2: Convert to fraction form
    189,563.05/261,596.64 = 109,006.12/x
  3. Step 3: Cross multiply
    189,563.05x = 261,596.64 × 109,006.12
  4. Step 4: Simplify right side
    189,563.05x = 28,515,634,731.44
  5. Step 5: Solve for x
    x = 28,515,634,731.44/189,563.05
  6. Step 6: Final answer
    x = 150,428.23

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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.