Home / 143,270.68-197,709.60-79,606.84

Finding the Fourth Proportional to 143,270.68, 197,709.60 and 79,606.84

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Solution

The fourth proportional to 143,270.68, 197,709.60 and 79,606.84 is: 109,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.68 : 197,709.60 = 79,606.84 : x
  2. Step 2: Convert to fraction form
    143,270.68/197,709.60 = 79,606.84/x
  3. Step 3: Cross multiply
    143,270.68x = 197,709.60 × 79,606.84
  4. Step 4: Simplify right side
    143,270.68x = 15,739,036,493.66
  5. Step 5: Solve for x
    x = 15,739,036,493.66/143,270.68
  6. Step 6: Final answer
    x = 109,855.25

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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.