Home / 143,821.09-215,762.77-55,074.60

Finding the Fourth Proportional to 143,821.09, 215,762.77 and 55,074.60

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Solution

The fourth proportional to 143,821.09, 215,762.77 and 55,074.60 is: 82,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.09 : 215,762.77 = 55,074.60 : x
  2. Step 2: Convert to fraction form
    143,821.09/215,762.77 = 55,074.60/x
  3. Step 3: Cross multiply
    143,821.09x = 215,762.77 × 55,074.60
  4. Step 4: Simplify right side
    143,821.09x = 11,883,047,850.92
  5. Step 5: Solve for x
    x = 11,883,047,850.92/143,821.09
  6. Step 6: Final answer
    x = 82,623.82

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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.