Home / 120,784.20-166,686.44-67,070.04

Finding the Fourth Proportional to 120,784.20, 166,686.44 and 67,070.04

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Solution

The fourth proportional to 120,784.20, 166,686.44 and 67,070.04 is: 92,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,784.20 : 166,686.44 = 67,070.04 : x
  2. Step 2: Convert to fraction form
    120,784.20/166,686.44 = 67,070.04/x
  3. Step 3: Cross multiply
    120,784.20x = 166,686.44 × 67,070.04
  4. Step 4: Simplify right side
    120,784.20x = 11,179,666,198.26
  5. Step 5: Solve for x
    x = 11,179,666,198.26/120,784.20
  6. Step 6: Final answer
    x = 92,559.01

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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.