Home / 123,215.42-170,037.16-66,626.66

Finding the Fourth Proportional to 123,215.42, 170,037.16 and 66,626.66

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Solution

The fourth proportional to 123,215.42, 170,037.16 and 66,626.66 is: 91,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,215.42 : 170,037.16 = 66,626.66 : x
  2. Step 2: Convert to fraction form
    123,215.42/170,037.16 = 66,626.66/x
  3. Step 3: Cross multiply
    123,215.42x = 170,037.16 × 66,626.66
  4. Step 4: Simplify right side
    123,215.42x = 11,329,008,046.69
  5. Step 5: Solve for x
    x = 11,329,008,046.69/123,215.42
  6. Step 6: Final answer
    x = 91,944.73

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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.