Home / 143,327.96-197,794.80-78,800.00

Finding the Fourth Proportional to 143,327.96, 197,794.80 and 78,800.00

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Solution

The fourth proportional to 143,327.96, 197,794.80 and 78,800.00 is: 108,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,327.96 : 197,794.80 = 78,800.00 : x
  2. Step 2: Convert to fraction form
    143,327.96/197,794.80 = 78,800.00/x
  3. Step 3: Cross multiply
    143,327.96x = 197,794.80 × 78,800.00
  4. Step 4: Simplify right side
    143,327.96x = 15,586,229,251.03
  5. Step 5: Solve for x
    x = 15,586,229,251.03/143,327.96
  6. Step 6: Final answer
    x = 108,745.21

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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.