Home / 126,457.38-174,434.04-81,120.06

Finding the Fourth Proportional to 126,457.38, 174,434.04 and 81,120.06

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Solution

The fourth proportional to 126,457.38, 174,434.04 and 81,120.06 is: 111,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,457.38 : 174,434.04 = 81,120.06 : x
  2. Step 2: Convert to fraction form
    126,457.38/174,434.04 = 81,120.06/x
  3. Step 3: Cross multiply
    126,457.38x = 174,434.04 × 81,120.06
  4. Step 4: Simplify right side
    126,457.38x = 14,150,099,790.84
  5. Step 5: Solve for x
    x = 14,150,099,790.84/126,457.38
  6. Step 6: Final answer
    x = 111,896.20

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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.