Home / 117,856.20-162,650.22-66,877.68

Finding the Fourth Proportional to 117,856.20, 162,650.22 and 66,877.68

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Solution

The fourth proportional to 117,856.20, 162,650.22 and 66,877.68 is: 92,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,856.20 : 162,650.22 = 66,877.68 : x
  2. Step 2: Convert to fraction form
    117,856.20/162,650.22 = 66,877.68/x
  3. Step 3: Cross multiply
    117,856.20x = 162,650.22 × 66,877.68
  4. Step 4: Simplify right side
    117,856.20x = 10,877,669,365.09
  5. Step 5: Solve for x
    x = 10,877,669,365.09/117,856.20
  6. Step 6: Final answer
    x = 92,296.11

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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.