Home / 126,682.74-190,089.72-91,909.44

Finding the Fourth Proportional to 126,682.74, 190,089.72 and 91,909.44

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Solution

The fourth proportional to 126,682.74, 190,089.72 and 91,909.44 is: 137,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,682.74 : 190,089.72 = 91,909.44 : x
  2. Step 2: Convert to fraction form
    126,682.74/190,089.72 = 91,909.44/x
  3. Step 3: Cross multiply
    126,682.74x = 190,089.72 × 91,909.44
  4. Step 4: Simplify right side
    126,682.74x = 17,471,039,714.96
  5. Step 5: Solve for x
    x = 17,471,039,714.96/126,682.74
  6. Step 6: Final answer
    x = 137,911.76

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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.