Home / 139,119.20-191,772.22-85,304.44

Finding the Fourth Proportional to 139,119.20, 191,772.22 and 85,304.44

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Solution

The fourth proportional to 139,119.20, 191,772.22 and 85,304.44 is: 117,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,119.20 : 191,772.22 = 85,304.44 : x
  2. Step 2: Convert to fraction form
    139,119.20/191,772.22 = 85,304.44/x
  3. Step 3: Cross multiply
    139,119.20x = 191,772.22 × 85,304.44
  4. Step 4: Simplify right side
    139,119.20x = 16,359,021,834.66
  5. Step 5: Solve for x
    x = 16,359,021,834.66/139,119.20
  6. Step 6: Final answer
    x = 117,589.96

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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.