Home / 123,224.31-169,971.24-80,785.56

Finding the Fourth Proportional to 123,224.31, 169,971.24 and 80,785.56

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Solution

The fourth proportional to 123,224.31, 169,971.24 and 80,785.56 is: 111,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,224.31 : 169,971.24 = 80,785.56 : x
  2. Step 2: Convert to fraction form
    123,224.31/169,971.24 = 80,785.56/x
  3. Step 3: Cross multiply
    123,224.31x = 169,971.24 × 80,785.56
  4. Step 4: Simplify right side
    123,224.31x = 13,731,221,807.29
  5. Step 5: Solve for x
    x = 13,731,221,807.29/123,224.31
  6. Step 6: Final answer
    x = 111,432.73

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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.