Home / 120,462.08-180,803.36-61,338.56

Finding the Fourth Proportional to 120,462.08, 180,803.36 and 61,338.56

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Solution

The fourth proportional to 120,462.08, 180,803.36 and 61,338.56 is: 92,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,462.08 : 180,803.36 = 61,338.56 : x
  2. Step 2: Convert to fraction form
    120,462.08/180,803.36 = 61,338.56/x
  3. Step 3: Cross multiply
    120,462.08x = 180,803.36 × 61,338.56
  4. Step 4: Simplify right side
    120,462.08x = 11,090,217,745.56
  5. Step 5: Solve for x
    x = 11,090,217,745.56/120,462.08
  6. Step 6: Final answer
    x = 92,063.97

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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.