Home / 143,771.02-198,415.41-79,251.73

Finding the Fourth Proportional to 143,771.02, 198,415.41 and 79,251.73

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Solution

The fourth proportional to 143,771.02, 198,415.41 and 79,251.73 is: 109,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,771.02 : 198,415.41 = 79,251.73 : x
  2. Step 2: Convert to fraction form
    143,771.02/198,415.41 = 79,251.73/x
  3. Step 3: Cross multiply
    143,771.02x = 198,415.41 × 79,251.73
  4. Step 4: Simplify right side
    143,771.02x = 15,724,763,509.08
  5. Step 5: Solve for x
    x = 15,724,763,509.08/143,771.02
  6. Step 6: Final answer
    x = 109,373.67

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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.