Home / 149,469.90-206,287.08-85,806.33

Finding the Fourth Proportional to 149,469.90, 206,287.08 and 85,806.33

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Solution

The fourth proportional to 149,469.90, 206,287.08 and 85,806.33 is: 118,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,469.90 : 206,287.08 = 85,806.33 : x
  2. Step 2: Convert to fraction form
    149,469.90/206,287.08 = 85,806.33/x
  3. Step 3: Cross multiply
    149,469.90x = 206,287.08 × 85,806.33
  4. Step 4: Simplify right side
    149,469.90x = 17,700,737,261.22
  5. Step 5: Solve for x
    x = 17,700,737,261.22/149,469.90
  6. Step 6: Final answer
    x = 118,423.42

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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.