Home / 149,721.56-206,603.33-85,173.62

Finding the Fourth Proportional to 149,721.56, 206,603.33 and 85,173.62

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Solution

The fourth proportional to 149,721.56, 206,603.33 and 85,173.62 is: 117,532.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,721.56 : 206,603.33 = 85,173.62 : x
  2. Step 2: Convert to fraction form
    149,721.56/206,603.33 = 85,173.62/x
  3. Step 3: Cross multiply
    149,721.56x = 206,603.33 × 85,173.62
  4. Step 4: Simplify right side
    149,721.56x = 17,597,153,520.15
  5. Step 5: Solve for x
    x = 17,597,153,520.15/149,721.56
  6. Step 6: Final answer
    x = 117,532.53

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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.