Home / 209,142.37-313,712.79-59,382.67

Finding the Fourth Proportional to 209,142.37, 313,712.79 and 59,382.67

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Solution

The fourth proportional to 209,142.37, 313,712.79 and 59,382.67 is: 89,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,142.37 : 313,712.79 = 59,382.67 : x
  2. Step 2: Convert to fraction form
    209,142.37/313,712.79 = 59,382.67/x
  3. Step 3: Cross multiply
    209,142.37x = 313,712.79 × 59,382.67
  4. Step 4: Simplify right side
    209,142.37x = 18,629,103,083.35
  5. Step 5: Solve for x
    x = 18,629,103,083.35/209,142.37
  6. Step 6: Final answer
    x = 89,073.79

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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.