Home / 199,749.87-275,754.23-123,311.10

Finding the Fourth Proportional to 199,749.87, 275,754.23 and 123,311.10

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Solution

The fourth proportional to 199,749.87, 275,754.23 and 123,311.10 is: 170,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,749.87 : 275,754.23 = 123,311.10 : x
  2. Step 2: Convert to fraction form
    199,749.87/275,754.23 = 123,311.10/x
  3. Step 3: Cross multiply
    199,749.87x = 275,754.23 × 123,311.10
  4. Step 4: Simplify right side
    199,749.87x = 34,003,557,430.95
  5. Step 5: Solve for x
    x = 34,003,557,430.95/199,749.87
  6. Step 6: Final answer
    x = 170,230.69

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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.