Home / 103,331.97-142,588.27-57,999.57

Finding the Fourth Proportional to 103,331.97, 142,588.27 and 57,999.57

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Solution

The fourth proportional to 103,331.97, 142,588.27 and 57,999.57 is: 80,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,331.97 : 142,588.27 = 57,999.57 : x
  2. Step 2: Convert to fraction form
    103,331.97/142,588.27 = 57,999.57/x
  3. Step 3: Cross multiply
    103,331.97x = 142,588.27 × 57,999.57
  4. Step 4: Simplify right side
    103,331.97x = 8,270,057,634.10
  5. Step 5: Solve for x
    x = 8,270,057,634.10/103,331.97
  6. Step 6: Final answer
    x = 80,033.87

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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.