Home / 209,206.76-313,943.79-76,074.35

Finding the Fourth Proportional to 209,206.76, 313,943.79 and 76,074.35

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Solution

The fourth proportional to 209,206.76, 313,943.79 and 76,074.35 is: 114,160.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,206.76 : 313,943.79 = 76,074.35 : x
  2. Step 2: Convert to fraction form
    209,206.76/313,943.79 = 76,074.35/x
  3. Step 3: Cross multiply
    209,206.76x = 313,943.79 × 76,074.35
  4. Step 4: Simplify right side
    209,206.76x = 23,883,069,760.79
  5. Step 5: Solve for x
    x = 23,883,069,760.79/209,206.76
  6. Step 6: Final answer
    x = 114,160.12

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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.