Home / 126,934.43-190,441.44-76,388.60

Finding the Fourth Proportional to 126,934.43, 190,441.44 and 76,388.60

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Solution

The fourth proportional to 126,934.43, 190,441.44 and 76,388.60 is: 114,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,934.43 : 190,441.44 = 76,388.60 : x
  2. Step 2: Convert to fraction form
    126,934.43/190,441.44 = 76,388.60/x
  3. Step 3: Cross multiply
    126,934.43x = 190,441.44 × 76,388.60
  4. Step 4: Simplify right side
    126,934.43x = 14,547,555,459.69
  5. Step 5: Solve for x
    x = 14,547,555,459.69/126,934.43
  6. Step 6: Final answer
    x = 114,606.86

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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.