Home / 143,166.70-197,570.36-79,504.50

Finding the Fourth Proportional to 143,166.70, 197,570.36 and 79,504.50

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Solution

The fourth proportional to 143,166.70, 197,570.36 and 79,504.50 is: 109,716.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,166.70 : 197,570.36 = 79,504.50 : x
  2. Step 2: Convert to fraction form
    143,166.70/197,570.36 = 79,504.50/x
  3. Step 3: Cross multiply
    143,166.70x = 197,570.36 × 79,504.50
  4. Step 4: Simplify right side
    143,166.70x = 15,707,732,289.10
  5. Step 5: Solve for x
    x = 15,707,732,289.10/143,166.70
  6. Step 6: Final answer
    x = 109,716.39

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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.