Home / 209,162.88-313,739.06-59,402.79

Finding the Fourth Proportional to 209,162.88, 313,739.06 and 59,402.79

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Solution

The fourth proportional to 209,162.88, 313,739.06 and 59,402.79 is: 89,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,162.88 : 313,739.06 = 59,402.79 : x
  2. Step 2: Convert to fraction form
    209,162.88/313,739.06 = 59,402.79/x
  3. Step 3: Cross multiply
    209,162.88x = 313,739.06 × 59,402.79
  4. Step 4: Simplify right side
    209,162.88x = 18,636,975,198.96
  5. Step 5: Solve for x
    x = 18,636,975,198.96/209,162.88
  6. Step 6: Final answer
    x = 89,102.69

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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.