Home / 127,861.20-191,791.80-44,763.60

Finding the Fourth Proportional to 127,861.20, 191,791.80 and 44,763.60

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Solution

The fourth proportional to 127,861.20, 191,791.80 and 44,763.60 is: 67,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,861.20 : 191,791.80 = 44,763.60 : x
  2. Step 2: Convert to fraction form
    127,861.20/191,791.80 = 44,763.60/x
  3. Step 3: Cross multiply
    127,861.20x = 191,791.80 × 44,763.60
  4. Step 4: Simplify right side
    127,861.20x = 8,585,291,418.48
  5. Step 5: Solve for x
    x = 8,585,291,418.48/127,861.20
  6. Step 6: Final answer
    x = 67,145.40

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1.5x scale

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.