Home / 149,450.80-206,231.79-84,049.40

Finding the Fourth Proportional to 149,450.80, 206,231.79 and 84,049.40

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Solution

The fourth proportional to 149,450.80, 206,231.79 and 84,049.40 is: 115,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,450.80 : 206,231.79 = 84,049.40 : x
  2. Step 2: Convert to fraction form
    149,450.80/206,231.79 = 84,049.40/x
  3. Step 3: Cross multiply
    149,450.80x = 206,231.79 × 84,049.40
  4. Step 4: Simplify right side
    149,450.80x = 17,333,658,210.43
  5. Step 5: Solve for x
    x = 17,333,658,210.43/149,450.80
  6. Step 6: Final answer
    x = 115,982.37

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1.5x scale

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.