Home / 209,749.87-289,459.29-114,256.36

Finding the Fourth Proportional to 209,749.87, 289,459.29 and 114,256.36

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Solution

The fourth proportional to 209,749.87, 289,459.29 and 114,256.36 is: 157,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,749.87 : 289,459.29 = 114,256.36 : x
  2. Step 2: Convert to fraction form
    209,749.87/289,459.29 = 114,256.36/x
  3. Step 3: Cross multiply
    209,749.87x = 289,459.29 × 114,256.36
  4. Step 4: Simplify right side
    209,749.87x = 33,072,564,843.58
  5. Step 5: Solve for x
    x = 33,072,564,843.58/209,749.87
  6. Step 6: Final answer
    x = 157,676.21

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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.