Home / 143,673.37-198,255.05-80,017.09

Finding the Fourth Proportional to 143,673.37, 198,255.05 and 80,017.09

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Solution

The fourth proportional to 143,673.37, 198,255.05 and 80,017.09 is: 110,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,673.37 : 198,255.05 = 80,017.09 : x
  2. Step 2: Convert to fraction form
    143,673.37/198,255.05 = 80,017.09/x
  3. Step 3: Cross multiply
    143,673.37x = 198,255.05 × 80,017.09
  4. Step 4: Simplify right side
    143,673.37x = 15,863,791,187.53
  5. Step 5: Solve for x
    x = 15,863,791,187.53/143,673.37
  6. Step 6: Final answer
    x = 110,415.67

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1.5x scale

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.