Home / 117,631.68-162,321.12-67,335.36

Finding the Fourth Proportional to 117,631.68, 162,321.12 and 67,335.36

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Solution

The fourth proportional to 117,631.68, 162,321.12 and 67,335.36 is: 92,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,631.68 : 162,321.12 = 67,335.36 : x
  2. Step 2: Convert to fraction form
    117,631.68/162,321.12 = 67,335.36/x
  3. Step 3: Cross multiply
    117,631.68x = 162,321.12 × 67,335.36
  4. Step 4: Simplify right side
    117,631.68x = 10,929,951,050.80
  5. Step 5: Solve for x
    x = 10,929,951,050.80/117,631.68
  6. Step 6: Final answer
    x = 92,916.73

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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.