Home / 126,886.20-190,329.30-115,222.20

Finding the Fourth Proportional to 126,886.20, 190,329.30 and 115,222.20

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Solution

The fourth proportional to 126,886.20, 190,329.30 and 115,222.20 is: 172,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,886.20 : 190,329.30 = 115,222.20 : x
  2. Step 2: Convert to fraction form
    126,886.20/190,329.30 = 115,222.20/x
  3. Step 3: Cross multiply
    126,886.20x = 190,329.30 × 115,222.20
  4. Step 4: Simplify right side
    126,886.20x = 21,930,160,670.46
  5. Step 5: Solve for x
    x = 21,930,160,670.46/126,886.20
  6. Step 6: Final answer
    x = 172,833.30

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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.