Home / 120,533.16-166,324.55-66,813.60

Finding the Fourth Proportional to 120,533.16, 166,324.55 and 66,813.60

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Solution

The fourth proportional to 120,533.16, 166,324.55 and 66,813.60 is: 92,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,533.16 : 166,324.55 = 66,813.60 : x
  2. Step 2: Convert to fraction form
    120,533.16/166,324.55 = 66,813.60/x
  3. Step 3: Cross multiply
    120,533.16x = 166,324.55 × 66,813.60
  4. Step 4: Simplify right side
    120,533.16x = 11,112,741,953.88
  5. Step 5: Solve for x
    x = 11,112,741,953.88/120,533.16
  6. Step 6: Final answer
    x = 92,196.55

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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.