Home / 126,653.15-190,197.06-112,453.72

Finding the Fourth Proportional to 126,653.15, 190,197.06 and 112,453.72

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Solution

The fourth proportional to 126,653.15, 190,197.06 and 112,453.72 is: 168,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,653.15 : 190,197.06 = 112,453.72 : x
  2. Step 2: Convert to fraction form
    126,653.15/190,197.06 = 112,453.72/x
  3. Step 3: Cross multiply
    126,653.15x = 190,197.06 × 112,453.72
  4. Step 4: Simplify right side
    126,653.15x = 21,388,366,930.06
  5. Step 5: Solve for x
    x = 21,388,366,930.06/126,653.15
  6. Step 6: Final answer
    x = 168,873.55

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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.