Home / 126,686.85-190,105.15-46,780.78

Finding the Fourth Proportional to 126,686.85, 190,105.15 and 46,780.78

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Solution

The fourth proportional to 126,686.85, 190,105.15 and 46,780.78 is: 70,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,686.85 : 190,105.15 = 46,780.78 : x
  2. Step 2: Convert to fraction form
    126,686.85/190,105.15 = 46,780.78/x
  3. Step 3: Cross multiply
    126,686.85x = 190,105.15 × 46,780.78
  4. Step 4: Simplify right side
    126,686.85x = 8,893,267,717.20
  5. Step 5: Solve for x
    x = 8,893,267,717.20/126,686.85
  6. Step 6: Final answer
    x = 70,198.82

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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.