Home / 105,455.10-158,183.26-43,125.60

Finding the Fourth Proportional to 105,455.10, 158,183.26 and 43,125.60

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Solution

The fourth proportional to 105,455.10, 158,183.26 and 43,125.60 is: 64,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,455.10 : 158,183.26 = 43,125.60 : x
  2. Step 2: Convert to fraction form
    105,455.10/158,183.26 = 43,125.60/x
  3. Step 3: Cross multiply
    105,455.10x = 158,183.26 × 43,125.60
  4. Step 4: Simplify right side
    105,455.10x = 6,821,747,997.46
  5. Step 5: Solve for x
    x = 6,821,747,997.46/105,455.10
  6. Step 6: Final answer
    x = 64,688.65

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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.