Home / 149,654.85-206,528.07-81,676.19

Finding the Fourth Proportional to 149,654.85, 206,528.07 and 81,676.19

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Solution

The fourth proportional to 149,654.85, 206,528.07 and 81,676.19 is: 112,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,654.85 : 206,528.07 = 81,676.19 : x
  2. Step 2: Convert to fraction form
    149,654.85/206,528.07 = 81,676.19/x
  3. Step 3: Cross multiply
    149,654.85x = 206,528.07 × 81,676.19
  4. Step 4: Simplify right side
    149,654.85x = 16,868,425,477.27
  5. Step 5: Solve for x
    x = 16,868,425,477.27/149,654.85
  6. Step 6: Final answer
    x = 112,715.53

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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.