Home / 103,621.72-155,229.18-53,734.44

Finding the Fourth Proportional to 103,621.72, 155,229.18 and 53,734.44

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Solution

The fourth proportional to 103,621.72, 155,229.18 and 53,734.44 is: 80,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.72 : 155,229.18 = 53,734.44 : x
  2. Step 2: Convert to fraction form
    103,621.72/155,229.18 = 53,734.44/x
  3. Step 3: Cross multiply
    103,621.72x = 155,229.18 × 53,734.44
  4. Step 4: Simplify right side
    103,621.72x = 8,341,153,058.96
  5. Step 5: Solve for x
    x = 8,341,153,058.96/103,621.72
  6. Step 6: Final answer
    x = 80,496.18

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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.