Home / 126,938.70-190,369.67-38,168.64

Finding the Fourth Proportional to 126,938.70, 190,369.67 and 38,168.64

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Solution

The fourth proportional to 126,938.70, 190,369.67 and 38,168.64 is: 57,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.70 : 190,369.67 = 38,168.64 : x
  2. Step 2: Convert to fraction form
    126,938.70/190,369.67 = 38,168.64/x
  3. Step 3: Cross multiply
    126,938.70x = 190,369.67 × 38,168.64
  4. Step 4: Simplify right side
    126,938.70x = 7,266,151,401.15
  5. Step 5: Solve for x
    x = 7,266,151,401.15/126,938.70
  6. Step 6: Final answer
    x = 57,241.42

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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.