Home / 209,786.30-289,504.23-114,292.70

Finding the Fourth Proportional to 209,786.30, 289,504.23 and 114,292.70

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Solution

The fourth proportional to 209,786.30, 289,504.23 and 114,292.70 is: 157,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,786.30 : 289,504.23 = 114,292.70 : x
  2. Step 2: Convert to fraction form
    209,786.30/289,504.23 = 114,292.70/x
  3. Step 3: Cross multiply
    209,786.30x = 289,504.23 × 114,292.70
  4. Step 4: Simplify right side
    209,786.30x = 33,088,220,108.12
  5. Step 5: Solve for x
    x = 33,088,220,108.12/209,786.30
  6. Step 6: Final answer
    x = 157,723.46

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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.