Home / 210,578.63-315,821.55-60,786.38

Finding the Fourth Proportional to 210,578.63, 315,821.55 and 60,786.38

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Solution

The fourth proportional to 210,578.63, 315,821.55 and 60,786.38 is: 91,166.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,578.63 : 315,821.55 = 60,786.38 : x
  2. Step 2: Convert to fraction form
    210,578.63/315,821.55 = 60,786.38/x
  3. Step 3: Cross multiply
    210,578.63x = 315,821.55 × 60,786.38
  4. Step 4: Simplify right side
    210,578.63x = 19,197,648,446.56
  5. Step 5: Solve for x
    x = 19,197,648,446.56/210,578.63
  6. Step 6: Final answer
    x = 91,166.18

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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.