Home / 140,490.90-193,823.24-86,682.60

Finding the Fourth Proportional to 140,490.90, 193,823.24 and 86,682.60

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Solution

The fourth proportional to 140,490.90, 193,823.24 and 86,682.60 is: 119,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490.90 : 193,823.24 = 86,682.60 : x
  2. Step 2: Convert to fraction form
    140,490.90/193,823.24 = 86,682.60/x
  3. Step 3: Cross multiply
    140,490.90x = 193,823.24 × 86,682.60
  4. Step 4: Simplify right side
    140,490.90x = 16,801,102,383.62
  5. Step 5: Solve for x
    x = 16,801,102,383.62/140,490.90
  6. Step 6: Final answer
    x = 119,588.55

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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.