Home / 132,986.80-199,313.88-66,445.66

Finding the Fourth Proportional to 132,986.80, 199,313.88 and 66,445.66

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Solution

The fourth proportional to 132,986.80, 199,313.88 and 66,445.66 is: 99,585.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,986.80 : 199,313.88 = 66,445.66 : x
  2. Step 2: Convert to fraction form
    132,986.80/199,313.88 = 66,445.66/x
  3. Step 3: Cross multiply
    132,986.80x = 199,313.88 × 66,445.66
  4. Step 4: Simplify right side
    132,986.80x = 13,243,542,303.76
  5. Step 5: Solve for x
    x = 13,243,542,303.76/132,986.80
  6. Step 6: Final answer
    x = 99,585.39

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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.