Home / 123,197.16-170,011.70-66,608.52

Finding the Fourth Proportional to 123,197.16, 170,011.70 and 66,608.52

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Solution

The fourth proportional to 123,197.16, 170,011.70 and 66,608.52 is: 91,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,197.16 : 170,011.70 = 66,608.52 : x
  2. Step 2: Convert to fraction form
    123,197.16/170,011.70 = 66,608.52/x
  3. Step 3: Cross multiply
    123,197.16x = 170,011.70 × 66,608.52
  4. Step 4: Simplify right side
    123,197.16x = 11,324,227,719.68
  5. Step 5: Solve for x
    x = 11,324,227,719.68/123,197.16
  6. Step 6: Final answer
    x = 91,919.55

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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.