Home / 274,455.11-411,400.78-105,929.75

Finding the Fourth Proportional to 274,455.11, 411,400.78 and 105,929.75

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Solution

The fourth proportional to 274,455.11, 411,400.78 and 105,929.75 is: 158,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,455.11 : 411,400.78 = 105,929.75 : x
  2. Step 2: Convert to fraction form
    274,455.11/411,400.78 = 105,929.75/x
  3. Step 3: Cross multiply
    274,455.11x = 411,400.78 × 105,929.75
  4. Step 4: Simplify right side
    274,455.11x = 43,579,579,453.38
  5. Step 5: Solve for x
    x = 43,579,579,453.38/274,455.11
  6. Step 6: Final answer
    x = 158,785.82

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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.