Home / 189,351.60-261,317.88-108,805.20

Finding the Fourth Proportional to 189,351.60, 261,317.88 and 108,805.20

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Solution

The fourth proportional to 189,351.60, 261,317.88 and 108,805.20 is: 150,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,351.60 : 261,317.88 = 108,805.20 : x
  2. Step 2: Convert to fraction form
    189,351.60/261,317.88 = 108,805.20/x
  3. Step 3: Cross multiply
    189,351.60x = 261,317.88 × 108,805.20
  4. Step 4: Simplify right side
    189,351.60x = 28,432,744,196.98
  5. Step 5: Solve for x
    x = 28,432,744,196.98/189,351.60
  6. Step 6: Final answer
    x = 150,158.46

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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.