Home / 209,039.22-313,597.71-68,807.70

Finding the Fourth Proportional to 209,039.22, 313,597.71 and 68,807.70

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Solution

The fourth proportional to 209,039.22, 313,597.71 and 68,807.70 is: 103,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,039.22 : 313,597.71 = 68,807.70 : x
  2. Step 2: Convert to fraction form
    209,039.22/313,597.71 = 68,807.70/x
  3. Step 3: Cross multiply
    209,039.22x = 313,597.71 × 68,807.70
  4. Step 4: Simplify right side
    209,039.22x = 21,577,937,150.37
  5. Step 5: Solve for x
    x = 21,577,937,150.37/209,039.22
  6. Step 6: Final answer
    x = 103,224.35

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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.