Home / 126,759.20-190,148.70-56,645.60

Finding the Fourth Proportional to 126,759.20, 190,148.70 and 56,645.60

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Solution

The fourth proportional to 126,759.20, 190,148.70 and 56,645.60 is: 84,972.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,759.20 : 190,148.70 = 56,645.60 : x
  2. Step 2: Convert to fraction form
    126,759.20/190,148.70 = 56,645.60/x
  3. Step 3: Cross multiply
    126,759.20x = 190,148.70 × 56,645.60
  4. Step 4: Simplify right side
    126,759.20x = 10,771,087,200.72
  5. Step 5: Solve for x
    x = 10,771,087,200.72/126,759.20
  6. Step 6: Final answer
    x = 84,972.82

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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.