Home / 135,870.12-204,018.48-115,082.73

Finding the Fourth Proportional to 135,870.12, 204,018.48 and 115,082.73

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Solution

The fourth proportional to 135,870.12, 204,018.48 and 115,082.73 is: 172,804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,870.12 : 204,018.48 = 115,082.73 : x
  2. Step 2: Convert to fraction form
    135,870.12/204,018.48 = 115,082.73/x
  3. Step 3: Cross multiply
    135,870.12x = 204,018.48 × 115,082.73
  4. Step 4: Simplify right side
    135,870.12x = 23,479,003,648.85
  5. Step 5: Solve for x
    x = 23,479,003,648.85/135,870.12
  6. Step 6: Final answer
    x = 172,804.76

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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.