Home / 209,090.06-313,328.90-103,698.54

Finding the Fourth Proportional to 209,090.06, 313,328.90 and 103,698.54

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Solution

The fourth proportional to 209,090.06, 313,328.90 and 103,698.54 is: 155,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,090.06 : 313,328.90 = 103,698.54 : x
  2. Step 2: Convert to fraction form
    209,090.06/313,328.90 = 103,698.54/x
  3. Step 3: Cross multiply
    209,090.06x = 313,328.90 × 103,698.54
  4. Step 4: Simplify right side
    209,090.06x = 32,491,749,469.81
  5. Step 5: Solve for x
    x = 32,491,749,469.81/209,090.06
  6. Step 6: Final answer
    x = 155,395.95

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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.