Home / 126,619.07-174,563.32-81,218.24

Finding the Fourth Proportional to 126,619.07, 174,563.32 and 81,218.24

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Solution

The fourth proportional to 126,619.07, 174,563.32 and 81,218.24 is: 111,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.07 : 174,563.32 = 81,218.24 : x
  2. Step 2: Convert to fraction form
    126,619.07/174,563.32 = 81,218.24/x
  3. Step 3: Cross multiply
    126,619.07x = 174,563.32 × 81,218.24
  4. Step 4: Simplify right side
    126,619.07x = 14,177,724,543.09
  5. Step 5: Solve for x
    x = 14,177,724,543.09/126,619.07
  6. Step 6: Final answer
    x = 111,971.48

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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.