Home / 140,530.68-193,929.39-76,866.30

Finding the Fourth Proportional to 140,530.68, 193,929.39 and 76,866.30

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Solution

The fourth proportional to 140,530.68, 193,929.39 and 76,866.30 is: 106,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,530.68 : 193,929.39 = 76,866.30 : x
  2. Step 2: Convert to fraction form
    140,530.68/193,929.39 = 76,866.30/x
  3. Step 3: Cross multiply
    140,530.68x = 193,929.39 × 76,866.30
  4. Step 4: Simplify right side
    140,530.68x = 14,906,634,670.56
  5. Step 5: Solve for x
    x = 14,906,634,670.56/140,530.68
  6. Step 6: Final answer
    x = 106,073.88

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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.