Home / 209,002.32-313,548.84-68,755.68

Finding the Fourth Proportional to 209,002.32, 313,548.84 and 68,755.68

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Solution

The fourth proportional to 209,002.32, 313,548.84 and 68,755.68 is: 103,148.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,002.32 : 313,548.84 = 68,755.68 : x
  2. Step 2: Convert to fraction form
    209,002.32/313,548.84 = 68,755.68/x
  3. Step 3: Cross multiply
    209,002.32x = 313,548.84 × 68,755.68
  4. Step 4: Simplify right side
    209,002.32x = 21,558,263,707.41
  5. Step 5: Solve for x
    x = 21,558,263,707.41/209,002.32
  6. Step 6: Final answer
    x = 103,148.44

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1.5x scale

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.