Home / 209,910.53-289,667.94-114,415.13

Finding the Fourth Proportional to 209,910.53, 289,667.94 and 114,415.13

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Solution

The fourth proportional to 209,910.53, 289,667.94 and 114,415.13 is: 157,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,910.53 : 289,667.94 = 114,415.13 : x
  2. Step 2: Convert to fraction form
    209,910.53/289,667.94 = 114,415.13/x
  3. Step 3: Cross multiply
    209,910.53x = 289,667.94 × 114,415.13
  4. Step 4: Simplify right side
    209,910.53x = 33,142,395,011.93
  5. Step 5: Solve for x
    x = 33,142,395,011.93/209,910.53
  6. Step 6: Final answer
    x = 157,888.20

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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.