Home / 126,911.88-190,367.28-74,653.92

Finding the Fourth Proportional to 126,911.88, 190,367.28 and 74,653.92

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Solution

The fourth proportional to 126,911.88, 190,367.28 and 74,653.92 is: 111,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.88 : 190,367.28 = 74,653.92 : x
  2. Step 2: Convert to fraction form
    126,911.88/190,367.28 = 74,653.92/x
  3. Step 3: Cross multiply
    126,911.88x = 190,367.28 × 74,653.92
  4. Step 4: Simplify right side
    126,911.88x = 14,211,663,691.74
  5. Step 5: Solve for x
    x = 14,211,663,691.74/126,911.88
  6. Step 6: Final answer
    x = 111,980.56

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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.