Home / 209,771.76-289,483.60-114,278.52

Finding the Fourth Proportional to 209,771.76, 289,483.60 and 114,278.52

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Solution

The fourth proportional to 209,771.76, 289,483.60 and 114,278.52 is: 157,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,771.76 : 289,483.60 = 114,278.52 : x
  2. Step 2: Convert to fraction form
    209,771.76/289,483.60 = 114,278.52/x
  3. Step 3: Cross multiply
    209,771.76x = 289,483.60 × 114,278.52
  4. Step 4: Simplify right side
    209,771.76x = 33,081,757,372.27
  5. Step 5: Solve for x
    x = 33,081,757,372.27/209,771.76
  6. Step 6: Final answer
    x = 157,703.58

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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.