Home / 213,874.02-320,720.67-64,135.62

Finding the Fourth Proportional to 213,874.02, 320,720.67 and 64,135.62

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Solution

The fourth proportional to 213,874.02, 320,720.67 and 64,135.62 is: 96,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,874.02 : 320,720.67 = 64,135.62 : x
  2. Step 2: Convert to fraction form
    213,874.02/320,720.67 = 64,135.62/x
  3. Step 3: Cross multiply
    213,874.02x = 320,720.67 × 64,135.62
  4. Step 4: Simplify right side
    213,874.02x = 20,569,619,017.27
  5. Step 5: Solve for x
    x = 20,569,619,017.27/213,874.02
  6. Step 6: Final answer
    x = 96,176.33

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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.