Home / 126,331.81-174,322.20-69,742.78

Finding the Fourth Proportional to 126,331.81, 174,322.20 and 69,742.78

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Solution

The fourth proportional to 126,331.81, 174,322.20 and 69,742.78 is: 96,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,331.81 : 174,322.20 = 69,742.78 : x
  2. Step 2: Convert to fraction form
    126,331.81/174,322.20 = 69,742.78/x
  3. Step 3: Cross multiply
    126,331.81x = 174,322.20 × 69,742.78
  4. Step 4: Simplify right side
    126,331.81x = 12,157,714,843.72
  5. Step 5: Solve for x
    x = 12,157,714,843.72/126,331.81
  6. Step 6: Final answer
    x = 96,236.37

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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.