Home / 121,709.54-182,266.22-100,519.94

Finding the Fourth Proportional to 121,709.54, 182,266.22 and 100,519.94

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Solution

The fourth proportional to 121,709.54, 182,266.22 and 100,519.94 is: 150,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,709.54 : 182,266.22 = 100,519.94 : x
  2. Step 2: Convert to fraction form
    121,709.54/182,266.22 = 100,519.94/x
  3. Step 3: Cross multiply
    121,709.54x = 182,266.22 × 100,519.94
  4. Step 4: Simplify right side
    121,709.54x = 18,321,389,498.43
  5. Step 5: Solve for x
    x = 18,321,389,498.43/121,709.54
  6. Step 6: Final answer
    x = 150,533.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.