Home / 143,157.24-197,550.90-79,499.34

Finding the Fourth Proportional to 143,157.24, 197,550.90 and 79,499.34

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Solution

The fourth proportional to 143,157.24, 197,550.90 and 79,499.34 is: 109,705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,157.24 : 197,550.90 = 79,499.34 : x
  2. Step 2: Convert to fraction form
    143,157.24/197,550.90 = 79,499.34/x
  3. Step 3: Cross multiply
    143,157.24x = 197,550.90 × 79,499.34
  4. Step 4: Simplify right side
    143,157.24x = 15,705,166,166.41
  5. Step 5: Solve for x
    x = 15,705,166,166.41/143,157.24
  6. Step 6: Final answer
    x = 109,705.71

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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.