Home / 209,921.50-289,690.86-114,427.90

Finding the Fourth Proportional to 209,921.50, 289,690.86 and 114,427.90

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Solution

The fourth proportional to 209,921.50, 289,690.86 and 114,427.90 is: 157,910.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,921.50 : 289,690.86 = 114,427.90 : x
  2. Step 2: Convert to fraction form
    209,921.50/289,690.86 = 114,427.90/x
  3. Step 3: Cross multiply
    209,921.50x = 289,690.86 × 114,427.90
  4. Step 4: Simplify right side
    209,921.50x = 33,148,716,758.99
  5. Step 5: Solve for x
    x = 33,148,716,758.99/209,921.50
  6. Step 6: Final answer
    x = 157,910.06

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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.