Home / 143,027.73-197,387.55-79,365.69

Finding the Fourth Proportional to 143,027.73, 197,387.55 and 79,365.69

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Solution

The fourth proportional to 143,027.73, 197,387.55 and 79,365.69 is: 109,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,027.73 : 197,387.55 = 79,365.69 : x
  2. Step 2: Convert to fraction form
    143,027.73/197,387.55 = 79,365.69/x
  3. Step 3: Cross multiply
    143,027.73x = 197,387.55 × 79,365.69
  4. Step 4: Simplify right side
    143,027.73x = 15,665,799,103.16
  5. Step 5: Solve for x
    x = 15,665,799,103.16/143,027.73
  6. Step 6: Final answer
    x = 109,529.80

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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.