Home / 149,997.42-207,018.18-86,334.66

Finding the Fourth Proportional to 149,997.42, 207,018.18 and 86,334.66

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Solution

The fourth proportional to 149,997.42, 207,018.18 and 86,334.66 is: 119,154.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,997.42 : 207,018.18 = 86,334.66 : x
  2. Step 2: Convert to fraction form
    149,997.42/207,018.18 = 86,334.66/x
  3. Step 3: Cross multiply
    149,997.42x = 207,018.18 × 86,334.66
  4. Step 4: Simplify right side
    149,997.42x = 17,872,844,184.12
  5. Step 5: Solve for x
    x = 17,872,844,184.12/149,997.42
  6. Step 6: Final answer
    x = 119,154.34

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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.