Home / 149,850.96-206,800.32-86,188.72

Finding the Fourth Proportional to 149,850.96, 206,800.32 and 86,188.72

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Solution

The fourth proportional to 149,850.96, 206,800.32 and 86,188.72 is: 118,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,850.96 : 206,800.32 = 86,188.72 : x
  2. Step 2: Convert to fraction form
    149,850.96/206,800.32 = 86,188.72/x
  3. Step 3: Cross multiply
    149,850.96x = 206,800.32 × 86,188.72
  4. Step 4: Simplify right side
    149,850.96x = 17,823,854,876.39
  5. Step 5: Solve for x
    x = 17,823,854,876.39/149,850.96
  6. Step 6: Final answer
    x = 118,943.88

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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.