Home / 149,747.94-206,686.62-98,769.78

Finding the Fourth Proportional to 149,747.94, 206,686.62 and 98,769.78

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Solution

The fourth proportional to 149,747.94, 206,686.62 and 98,769.78 is: 136,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,747.94 : 206,686.62 = 98,769.78 : x
  2. Step 2: Convert to fraction form
    149,747.94/206,686.62 = 98,769.78/x
  3. Step 3: Cross multiply
    149,747.94x = 206,686.62 × 98,769.78
  4. Step 4: Simplify right side
    149,747.94x = 20,414,391,986.34
  5. Step 5: Solve for x
    x = 20,414,391,986.34/149,747.94
  6. Step 6: Final answer
    x = 136,325.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.