Home / 149,568.16-206,415.12-85,908.64

Finding the Fourth Proportional to 149,568.16, 206,415.12 and 85,908.64

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Solution

The fourth proportional to 149,568.16, 206,415.12 and 85,908.64 is: 118,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,568.16 : 206,415.12 = 85,908.64 : x
  2. Step 2: Convert to fraction form
    149,568.16/206,415.12 = 85,908.64/x
  3. Step 3: Cross multiply
    149,568.16x = 206,415.12 × 85,908.64
  4. Step 4: Simplify right side
    149,568.16x = 17,732,842,234.64
  5. Step 5: Solve for x
    x = 17,732,842,234.64/149,568.16
  6. Step 6: Final answer
    x = 118,560.28

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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.