Home / 132,491.09-182,777.39-78,745.56

Finding the Fourth Proportional to 132,491.09, 182,777.39 and 78,745.56

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Solution

The fourth proportional to 132,491.09, 182,777.39 and 78,745.56 is: 108,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,491.09 : 182,777.39 = 78,745.56 : x
  2. Step 2: Convert to fraction form
    132,491.09/182,777.39 = 78,745.56/x
  3. Step 3: Cross multiply
    132,491.09x = 182,777.39 × 78,745.56
  4. Step 4: Simplify right side
    132,491.09x = 14,392,907,930.89
  5. Step 5: Solve for x
    x = 14,392,907,930.89/132,491.09
  6. Step 6: Final answer
    x = 108,633.03

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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.