Home / 126,619.58-190,877.90-118,057.88

Finding the Fourth Proportional to 126,619.58, 190,877.90 and 118,057.88

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Solution

The fourth proportional to 126,619.58, 190,877.90 and 118,057.88 is: 177,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.58 : 190,877.90 = 118,057.88 : x
  2. Step 2: Convert to fraction form
    126,619.58/190,877.90 = 118,057.88/x
  3. Step 3: Cross multiply
    126,619.58x = 190,877.90 × 118,057.88
  4. Step 4: Simplify right side
    126,619.58x = 22,534,640,212.85
  5. Step 5: Solve for x
    x = 22,534,640,212.85/126,619.58
  6. Step 6: Final answer
    x = 177,971.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.