Home / 126,721.28-190,081.92-56,649.44

Finding the Fourth Proportional to 126,721.28, 190,081.92 and 56,649.44

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Solution

The fourth proportional to 126,721.28, 190,081.92 and 56,649.44 is: 84,974.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,721.28 : 190,081.92 = 56,649.44 : x
  2. Step 2: Convert to fraction form
    126,721.28/190,081.92 = 56,649.44/x
  3. Step 3: Cross multiply
    126,721.28x = 190,081.92 × 56,649.44
  4. Step 4: Simplify right side
    126,721.28x = 10,768,034,322.12
  5. Step 5: Solve for x
    x = 10,768,034,322.12/126,721.28
  6. Step 6: Final answer
    x = 84,974.16

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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.