Home / 210,578.78-315,821.66-60,786.52

Finding the Fourth Proportional to 210,578.78, 315,821.66 and 60,786.52

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Solution

The fourth proportional to 210,578.78, 315,821.66 and 60,786.52 is: 91,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,578.78 : 315,821.66 = 60,786.52 : x
  2. Step 2: Convert to fraction form
    210,578.78/315,821.66 = 60,786.52/x
  3. Step 3: Cross multiply
    210,578.78x = 315,821.66 × 60,786.52
  4. Step 4: Simplify right side
    210,578.78x = 19,197,699,652.02
  5. Step 5: Solve for x
    x = 19,197,699,652.02/210,578.78
  6. Step 6: Final answer
    x = 91,166.35

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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.