Home / 126,755.92-174,873.28-81,427.60

Finding the Fourth Proportional to 126,755.92, 174,873.28 and 81,427.60

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Solution

The fourth proportional to 126,755.92, 174,873.28 and 81,427.60 is: 112,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,755.92 : 174,873.28 = 81,427.60 : x
  2. Step 2: Convert to fraction form
    126,755.92/174,873.28 = 81,427.60/x
  3. Step 3: Cross multiply
    126,755.92x = 174,873.28 × 81,427.60
  4. Step 4: Simplify right side
    126,755.92x = 14,239,511,494.53
  5. Step 5: Solve for x
    x = 14,239,511,494.53/126,755.92
  6. Step 6: Final answer
    x = 112,338.04

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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.