Home / 126,773.28-190,346.22-70,722.90

Finding the Fourth Proportional to 126,773.28, 190,346.22 and 70,722.90

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Solution

The fourth proportional to 126,773.28, 190,346.22 and 70,722.90 is: 106,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,773.28 : 190,346.22 = 70,722.90 : x
  2. Step 2: Convert to fraction form
    126,773.28/190,346.22 = 70,722.90/x
  3. Step 3: Cross multiply
    126,773.28x = 190,346.22 × 70,722.90
  4. Step 4: Simplify right side
    126,773.28x = 13,461,836,682.44
  5. Step 5: Solve for x
    x = 13,461,836,682.44/126,773.28
  6. Step 6: Final answer
    x = 106,188.28

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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.