Home / 209,207.76-313,945.29-76,075.35

Finding the Fourth Proportional to 209,207.76, 313,945.29 and 76,075.35

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Solution

The fourth proportional to 209,207.76, 313,945.29 and 76,075.35 is: 114,161.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,207.76 : 313,945.29 = 76,075.35 : x
  2. Step 2: Convert to fraction form
    209,207.76/313,945.29 = 76,075.35/x
  3. Step 3: Cross multiply
    209,207.76x = 313,945.29 × 76,075.35
  4. Step 4: Simplify right side
    209,207.76x = 23,883,497,817.60
  5. Step 5: Solve for x
    x = 23,883,497,817.60/209,207.76
  6. Step 6: Final answer
    x = 114,161.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.