Home / 149,748.98-206,654.04-81,766.56

Finding the Fourth Proportional to 149,748.98, 206,654.04 and 81,766.56

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Solution

The fourth proportional to 149,748.98, 206,654.04 and 81,766.56 is: 112,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,748.98 : 206,654.04 = 81,766.56 : x
  2. Step 2: Convert to fraction form
    149,748.98/206,654.04 = 81,766.56/x
  3. Step 3: Cross multiply
    149,748.98x = 206,654.04 × 81,766.56
  4. Step 4: Simplify right side
    149,748.98x = 16,897,389,960.90
  5. Step 5: Solve for x
    x = 16,897,389,960.90/149,748.98
  6. Step 6: Final answer
    x = 112,838.10

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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.