Home / 149,436.07-206,234.13-85,786.16

Finding the Fourth Proportional to 149,436.07, 206,234.13 and 85,786.16

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Solution

The fourth proportional to 149,436.07, 206,234.13 and 85,786.16 is: 118,391.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,436.07 : 206,234.13 = 85,786.16 : x
  2. Step 2: Convert to fraction form
    149,436.07/206,234.13 = 85,786.16/x
  3. Step 3: Cross multiply
    149,436.07x = 206,234.13 × 85,786.16
  4. Step 4: Simplify right side
    149,436.07x = 17,692,034,073.64
  5. Step 5: Solve for x
    x = 17,692,034,073.64/149,436.07
  6. Step 6: Final answer
    x = 118,391.99

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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.