Home / 126,853.83-174,973.91-81,589.09

Finding the Fourth Proportional to 126,853.83, 174,973.91 and 81,589.09

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Solution

The fourth proportional to 126,853.83, 174,973.91 and 81,589.09 is: 112,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,853.83 : 174,973.91 = 81,589.09 : x
  2. Step 2: Convert to fraction form
    126,853.83/174,973.91 = 81,589.09/x
  3. Step 3: Cross multiply
    126,853.83x = 174,973.91 × 81,589.09
  4. Step 4: Simplify right side
    126,853.83x = 14,275,962,090.64
  5. Step 5: Solve for x
    x = 14,275,962,090.64/126,853.83
  6. Step 6: Final answer
    x = 112,538.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.