Home / 143,270.37-197,711.69-79,606.80

Finding the Fourth Proportional to 143,270.37, 197,711.69 and 79,606.80

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Solution

The fourth proportional to 143,270.37, 197,711.69 and 79,606.80 is: 109,856.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.37 : 197,711.69 = 79,606.80 : x
  2. Step 2: Convert to fraction form
    143,270.37/197,711.69 = 79,606.80/x
  3. Step 3: Cross multiply
    143,270.37x = 197,711.69 × 79,606.80
  4. Step 4: Simplify right side
    143,270.37x = 15,739,194,565.46
  5. Step 5: Solve for x
    x = 15,739,194,565.46/143,270.37
  6. Step 6: Final answer
    x = 109,856.59

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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.