Home / 189,378.56-261,350.88-108,832.16

Finding the Fourth Proportional to 189,378.56, 261,350.88 and 108,832.16

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Solution

The fourth proportional to 189,378.56, 261,350.88 and 108,832.16 is: 150,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378.56 : 261,350.88 = 108,832.16 : x
  2. Step 2: Convert to fraction form
    189,378.56/261,350.88 = 108,832.16/x
  3. Step 3: Cross multiply
    189,378.56x = 261,350.88 × 108,832.16
  4. Step 4: Simplify right side
    189,378.56x = 28,443,380,788.30
  5. Step 5: Solve for x
    x = 28,443,380,788.30/189,378.56
  6. Step 6: Final answer
    x = 150,193.25

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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.