Home / 140,520.30-193,922.66-76,858.10

Finding the Fourth Proportional to 140,520.30, 193,922.66 and 76,858.10

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Solution

The fourth proportional to 140,520.30, 193,922.66 and 76,858.10 is: 106,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,520.30 : 193,922.66 = 76,858.10 : x
  2. Step 2: Convert to fraction form
    140,520.30/193,922.66 = 76,858.10/x
  3. Step 3: Cross multiply
    140,520.30x = 193,922.66 × 76,858.10
  4. Step 4: Simplify right side
    140,520.30x = 14,904,525,840.64
  5. Step 5: Solve for x
    x = 14,904,525,840.64/140,520.30
  6. Step 6: Final answer
    x = 106,066.71

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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.