Home / 126,938.28-190,423.62-42,662.28

Finding the Fourth Proportional to 126,938.28, 190,423.62 and 42,662.28

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Solution

The fourth proportional to 126,938.28, 190,423.62 and 42,662.28 is: 63,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.28 : 190,423.62 = 42,662.28 : x
  2. Step 2: Convert to fraction form
    126,938.28/190,423.62 = 42,662.28/x
  3. Step 3: Cross multiply
    126,938.28x = 190,423.62 × 42,662.28
  4. Step 4: Simplify right side
    126,938.28x = 8,123,905,795.05
  5. Step 5: Solve for x
    x = 8,123,905,795.05/126,938.28
  6. Step 6: Final answer
    x = 63,998.86

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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.