Home / 123,321.16-170,183.67-66,732.55

Finding the Fourth Proportional to 123,321.16, 170,183.67 and 66,732.55

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Solution

The fourth proportional to 123,321.16, 170,183.67 and 66,732.55 is: 92,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,321.16 : 170,183.67 = 66,732.55 : x
  2. Step 2: Convert to fraction form
    123,321.16/170,183.67 = 66,732.55/x
  3. Step 3: Cross multiply
    123,321.16x = 170,183.67 × 66,732.55
  4. Step 4: Simplify right side
    123,321.16x = 11,356,790,267.46
  5. Step 5: Solve for x
    x = 11,356,790,267.46/123,321.16
  6. Step 6: Final answer
    x = 92,091.17

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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.