Home / 475,199.08-712,731.66-120,191.20

Finding the Fourth Proportional to 475,199.08, 712,731.66 and 120,191.20

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Solution

The fourth proportional to 475,199.08, 712,731.66 and 120,191.20 is: 180,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,199.08 : 712,731.66 = 120,191.20 : x
  2. Step 2: Convert to fraction form
    475,199.08/712,731.66 = 120,191.20/x
  3. Step 3: Cross multiply
    475,199.08x = 712,731.66 × 120,191.20
  4. Step 4: Simplify right side
    475,199.08x = 85,664,073,493.39
  5. Step 5: Solve for x
    x = 85,664,073,493.39/475,199.08
  6. Step 6: Final answer
    x = 180,269.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.