Home / 185,819.60-256,421.36-100,936.56

Finding the Fourth Proportional to 185,819.60, 256,421.36 and 100,936.56

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Solution

The fourth proportional to 185,819.60, 256,421.36 and 100,936.56 is: 139,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,819.60 : 256,421.36 = 100,936.56 : x
  2. Step 2: Convert to fraction form
    185,819.60/256,421.36 = 100,936.56/x
  3. Step 3: Cross multiply
    185,819.60x = 256,421.36 × 100,936.56
  4. Step 4: Simplify right side
    185,819.60x = 25,882,289,988.92
  5. Step 5: Solve for x
    x = 25,882,289,988.92/185,819.60
  6. Step 6: Final answer
    x = 139,287.19

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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.