Home / 143,975.37-198,652.19-87,375.81

Finding the Fourth Proportional to 143,975.37, 198,652.19 and 87,375.81

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Solution

The fourth proportional to 143,975.37, 198,652.19 and 87,375.81 is: 120,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,975.37 : 198,652.19 = 87,375.81 : x
  2. Step 2: Convert to fraction form
    143,975.37/198,652.19 = 87,375.81/x
  3. Step 3: Cross multiply
    143,975.37x = 198,652.19 × 87,375.81
  4. Step 4: Simplify right side
    143,975.37x = 17,357,395,572.64
  5. Step 5: Solve for x
    x = 17,357,395,572.64/143,975.37
  6. Step 6: Final answer
    x = 120,558.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.