Home / 120,595.19-166,410.36-66,880.04

Finding the Fourth Proportional to 120,595.19, 166,410.36 and 66,880.04

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Solution

The fourth proportional to 120,595.19, 166,410.36 and 66,880.04 is: 92,288.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,595.19 : 166,410.36 = 66,880.04 : x
  2. Step 2: Convert to fraction form
    120,595.19/166,410.36 = 66,880.04/x
  3. Step 3: Cross multiply
    120,595.19x = 166,410.36 × 66,880.04
  4. Step 4: Simplify right side
    120,595.19x = 11,129,530,701.16
  5. Step 5: Solve for x
    x = 11,129,530,701.16/120,595.19
  6. Step 6: Final answer
    x = 92,288.35

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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.