Home / 126,824.60-190,245.10-42,581.36

Finding the Fourth Proportional to 126,824.60, 190,245.10 and 42,581.36

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Solution

The fourth proportional to 126,824.60, 190,245.10 and 42,581.36 is: 63,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,824.60 : 190,245.10 = 42,581.36 : x
  2. Step 2: Convert to fraction form
    126,824.60/190,245.10 = 42,581.36/x
  3. Step 3: Cross multiply
    126,824.60x = 190,245.10 × 42,581.36
  4. Step 4: Simplify right side
    126,824.60x = 8,100,893,927.20
  5. Step 5: Solve for x
    x = 8,100,893,927.20/126,824.60
  6. Step 6: Final answer
    x = 63,874.79

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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.