Home / 126,899.09-175,109.07-73,173.72

Finding the Fourth Proportional to 126,899.09, 175,109.07 and 73,173.72

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Solution

The fourth proportional to 126,899.09, 175,109.07 and 73,173.72 is: 100,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,899.09 : 175,109.07 = 73,173.72 : x
  2. Step 2: Convert to fraction form
    126,899.09/175,109.07 = 73,173.72/x
  3. Step 3: Cross multiply
    126,899.09x = 175,109.07 × 73,173.72
  4. Step 4: Simplify right side
    126,899.09x = 12,813,382,057.64
  5. Step 5: Solve for x
    x = 12,813,382,057.64/126,899.09
  6. Step 6: Final answer
    x = 100,973.00

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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.