Home / 140,213.66-193,499.44-76,556.30

Finding the Fourth Proportional to 140,213.66, 193,499.44 and 76,556.30

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Solution

The fourth proportional to 140,213.66, 193,499.44 and 76,556.30 is: 105,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,213.66 : 193,499.44 = 76,556.30 : x
  2. Step 2: Convert to fraction form
    140,213.66/193,499.44 = 76,556.30/x
  3. Step 3: Cross multiply
    140,213.66x = 193,499.44 × 76,556.30
  4. Step 4: Simplify right side
    140,213.66x = 14,813,601,178.47
  5. Step 5: Solve for x
    x = 14,813,601,178.47/140,213.66
  6. Step 6: Final answer
    x = 105,650.20

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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.