Home / 149,956.20-206,945.84-86,294.28

Finding the Fourth Proportional to 149,956.20, 206,945.84 and 86,294.28

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Solution

The fourth proportional to 149,956.20, 206,945.84 and 86,294.28 is: 119,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,956.20 : 206,945.84 = 86,294.28 : x
  2. Step 2: Convert to fraction form
    149,956.20/206,945.84 = 86,294.28/x
  3. Step 3: Cross multiply
    149,956.20x = 206,945.84 × 86,294.28
  4. Step 4: Simplify right side
    149,956.20x = 17,858,242,261.80
  5. Step 5: Solve for x
    x = 17,858,242,261.80/149,956.20
  6. Step 6: Final answer
    x = 119,089.72

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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.