Home / 209,517.25-289,128.26-114,021.90

Finding the Fourth Proportional to 209,517.25, 289,128.26 and 114,021.90

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Solution

The fourth proportional to 209,517.25, 289,128.26 and 114,021.90 is: 157,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,517.25 : 289,128.26 = 114,021.90 : x
  2. Step 2: Convert to fraction form
    209,517.25/289,128.26 = 114,021.90/x
  3. Step 3: Cross multiply
    209,517.25x = 289,128.26 × 114,021.90
  4. Step 4: Simplify right side
    209,517.25x = 32,966,953,548.89
  5. Step 5: Solve for x
    x = 32,966,953,548.89/209,517.25
  6. Step 6: Final answer
    x = 157,347.20

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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.