Home / 143,366.77-197,858.75-78,847.37

Finding the Fourth Proportional to 143,366.77, 197,858.75 and 78,847.37

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Solution

The fourth proportional to 143,366.77, 197,858.75 and 78,847.37 is: 108,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,366.77 : 197,858.75 = 78,847.37 : x
  2. Step 2: Convert to fraction form
    143,366.77/197,858.75 = 78,847.37/x
  3. Step 3: Cross multiply
    143,366.77x = 197,858.75 × 78,847.37
  4. Step 4: Simplify right side
    143,366.77x = 15,600,641,427.43
  5. Step 5: Solve for x
    x = 15,600,641,427.43/143,366.77
  6. Step 6: Final answer
    x = 108,816.30

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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.