Home / 133,639.20-199,113.26-131,714.64

Finding the Fourth Proportional to 133,639.20, 199,113.26 and 131,714.64

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Solution

The fourth proportional to 133,639.20, 199,113.26 and 131,714.64 is: 196,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,639.20 : 199,113.26 = 131,714.64 : x
  2. Step 2: Convert to fraction form
    133,639.20/199,113.26 = 131,714.64/x
  3. Step 3: Cross multiply
    133,639.20x = 199,113.26 × 131,714.64
  4. Step 4: Simplify right side
    133,639.20x = 26,226,130,701.55
  5. Step 5: Solve for x
    x = 26,226,130,701.55/133,639.20
  6. Step 6: Final answer
    x = 196,245.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.