Home / 102,659.74-141,661.22-57,331.43

Finding the Fourth Proportional to 102,659.74, 141,661.22 and 57,331.43

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Solution

The fourth proportional to 102,659.74, 141,661.22 and 57,331.43 is: 79,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,659.74 : 141,661.22 = 57,331.43 : x
  2. Step 2: Convert to fraction form
    102,659.74/141,661.22 = 57,331.43/x
  3. Step 3: Cross multiply
    102,659.74x = 141,661.22 × 57,331.43
  4. Step 4: Simplify right side
    102,659.74x = 8,121,640,318.14
  5. Step 5: Solve for x
    x = 8,121,640,318.14/102,659.74
  6. Step 6: Final answer
    x = 79,112.23

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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.