Home / 137,755.57-190,053.79-90,036.44

Finding the Fourth Proportional to 137,755.57, 190,053.79 and 90,036.44

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Solution

The fourth proportional to 137,755.57, 190,053.79 and 90,036.44 is: 124,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,755.57 : 190,053.79 = 90,036.44 : x
  2. Step 2: Convert to fraction form
    137,755.57/190,053.79 = 90,036.44/x
  3. Step 3: Cross multiply
    137,755.57x = 190,053.79 × 90,036.44
  4. Step 4: Simplify right side
    137,755.57x = 17,111,766,910.15
  5. Step 5: Solve for x
    x = 17,111,766,910.15/137,755.57
  6. Step 6: Final answer
    x = 124,218.33

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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.