Home / 123,219.96-170,042.94-66,631.20

Finding the Fourth Proportional to 123,219.96, 170,042.94 and 66,631.20

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Solution

The fourth proportional to 123,219.96, 170,042.94 and 66,631.20 is: 91,950.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,219.96 : 170,042.94 = 66,631.20 : x
  2. Step 2: Convert to fraction form
    123,219.96/170,042.94 = 66,631.20/x
  3. Step 3: Cross multiply
    123,219.96x = 170,042.94 × 66,631.20
  4. Step 4: Simplify right side
    123,219.96x = 11,330,165,143.73
  5. Step 5: Solve for x
    x = 11,330,165,143.73/123,219.96
  6. Step 6: Final answer
    x = 91,950.73

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1.5x scale

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.