Home / 120,198.83-180,386.82-57,019.14

Finding the Fourth Proportional to 120,198.83, 180,386.82 and 57,019.14

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Solution

The fourth proportional to 120,198.83, 180,386.82 and 57,019.14 is: 85,570.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198.83 : 180,386.82 = 57,019.14 : x
  2. Step 2: Convert to fraction form
    120,198.83/180,386.82 = 57,019.14/x
  3. Step 3: Cross multiply
    120,198.83x = 180,386.82 × 57,019.14
  4. Step 4: Simplify right side
    120,198.83x = 10,285,501,343.73
  5. Step 5: Solve for x
    x = 10,285,501,343.73/120,198.83
  6. Step 6: Final answer
    x = 85,570.73

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1.5x scale

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.