Home / 209,213.44-288,716.48-113,720.36

Finding the Fourth Proportional to 209,213.44, 288,716.48 and 113,720.36

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Solution

The fourth proportional to 209,213.44, 288,716.48 and 113,720.36 is: 156,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,213.44 : 288,716.48 = 113,720.36 : x
  2. Step 2: Convert to fraction form
    209,213.44/288,716.48 = 113,720.36/x
  3. Step 3: Cross multiply
    209,213.44x = 288,716.48 × 113,720.36
  4. Step 4: Simplify right side
    209,213.44x = 32,832,942,043.53
  5. Step 5: Solve for x
    x = 32,832,942,043.53/209,213.44
  6. Step 6: Final answer
    x = 156,935.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.