Home / 209,141.08-313,712.66-51,369.56

Finding the Fourth Proportional to 209,141.08, 313,712.66 and 51,369.56

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Solution

The fourth proportional to 209,141.08, 313,712.66 and 51,369.56 is: 77,054.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,141.08 : 313,712.66 = 51,369.56 : x
  2. Step 2: Convert to fraction form
    209,141.08/313,712.66 = 51,369.56/x
  3. Step 3: Cross multiply
    209,141.08x = 313,712.66 × 51,369.56
  4. Step 4: Simplify right side
    209,141.08x = 16,115,281,310.63
  5. Step 5: Solve for x
    x = 16,115,281,310.63/209,141.08
  6. Step 6: Final answer
    x = 77,054.60

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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.