Home / 120,573.04-166,399.32-66,863.20

Finding the Fourth Proportional to 120,573.04, 166,399.32 and 66,863.20

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Solution

The fourth proportional to 120,573.04, 166,399.32 and 66,863.20 is: 92,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,573.04 : 166,399.32 = 66,863.20 : x
  2. Step 2: Convert to fraction form
    120,573.04/166,399.32 = 66,863.20/x
  3. Step 3: Cross multiply
    120,573.04x = 166,399.32 × 66,863.20
  4. Step 4: Simplify right side
    120,573.04x = 11,125,991,013.02
  5. Step 5: Solve for x
    x = 11,125,991,013.02/120,573.04
  6. Step 6: Final answer
    x = 92,275.94

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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.