Home / 126,972.49-190,456.62-30,910.72

Finding the Fourth Proportional to 126,972.49, 190,456.62 and 30,910.72

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Solution

The fourth proportional to 126,972.49, 190,456.62 and 30,910.72 is: 46,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,972.49 : 190,456.62 = 30,910.72 : x
  2. Step 2: Convert to fraction form
    126,972.49/190,456.62 = 30,910.72/x
  3. Step 3: Cross multiply
    126,972.49x = 190,456.62 × 30,910.72
  4. Step 4: Simplify right side
    126,972.49x = 5,887,151,252.97
  5. Step 5: Solve for x
    x = 5,887,151,252.97/126,972.49
  6. Step 6: Final answer
    x = 46,365.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.