Home / 126,155.80-189,201.44-37,388.60

Finding the Fourth Proportional to 126,155.80, 189,201.44 and 37,388.60

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Solution

The fourth proportional to 126,155.80, 189,201.44 and 37,388.60 is: 56,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,155.80 : 189,201.44 = 37,388.60 : x
  2. Step 2: Convert to fraction form
    126,155.80/189,201.44 = 37,388.60/x
  3. Step 3: Cross multiply
    126,155.80x = 189,201.44 × 37,388.60
  4. Step 4: Simplify right side
    126,155.80x = 7,073,976,959.58
  5. Step 5: Solve for x
    x = 7,073,976,959.58/126,155.80
  6. Step 6: Final answer
    x = 56,073.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.