Home / 133,103.56-199,702.86-57,170.20

Finding the Fourth Proportional to 133,103.56, 199,702.86 and 57,170.20

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Solution

The fourth proportional to 133,103.56, 199,702.86 and 57,170.20 is: 85,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,103.56 : 199,702.86 = 57,170.20 : x
  2. Step 2: Convert to fraction form
    133,103.56/199,702.86 = 57,170.20/x
  3. Step 3: Cross multiply
    133,103.56x = 199,702.86 × 57,170.20
  4. Step 4: Simplify right side
    133,103.56x = 11,417,052,446.77
  5. Step 5: Solve for x
    x = 11,417,052,446.77/133,103.56
  6. Step 6: Final answer
    x = 85,775.71

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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.