Home / 132,629.18-183,022.66-72,198.56

Finding the Fourth Proportional to 132,629.18, 183,022.66 and 72,198.56

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Solution

The fourth proportional to 132,629.18, 183,022.66 and 72,198.56 is: 99,630.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,629.18 : 183,022.66 = 72,198.56 : x
  2. Step 2: Convert to fraction form
    132,629.18/183,022.66 = 72,198.56/x
  3. Step 3: Cross multiply
    132,629.18x = 183,022.66 × 72,198.56
  4. Step 4: Simplify right side
    132,629.18x = 13,213,973,047.17
  5. Step 5: Solve for x
    x = 13,213,973,047.17/132,629.18
  6. Step 6: Final answer
    x = 99,630.97

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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.