Home / 117,193.70-161,620.99-76,892.15

Finding the Fourth Proportional to 117,193.70, 161,620.99 and 76,892.15

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Solution

The fourth proportional to 117,193.70, 161,620.99 and 76,892.15 is: 106,041.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,193.70 : 161,620.99 = 76,892.15 : x
  2. Step 2: Convert to fraction form
    117,193.70/161,620.99 = 76,892.15/x
  3. Step 3: Cross multiply
    117,193.70x = 161,620.99 × 76,892.15
  4. Step 4: Simplify right side
    117,193.70x = 12,427,385,618.05
  5. Step 5: Solve for x
    x = 12,427,385,618.05/117,193.70
  6. Step 6: Final answer
    x = 106,041.41

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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.