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Finding the Fourth Proportional to 143,459.37, 197,973.32 and 79,797.02

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Solution

The fourth proportional to 143,459.37, 197,973.32 and 79,797.02 is: 110,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,459.37 : 197,973.32 = 79,797.02 : x
  2. Step 2: Convert to fraction form
    143,459.37/197,973.32 = 79,797.02/x
  3. Step 3: Cross multiply
    143,459.37x = 197,973.32 × 79,797.02
  4. Step 4: Simplify right side
    143,459.37x = 15,797,679,586.65
  5. Step 5: Solve for x
    x = 15,797,679,586.65/143,459.37
  6. Step 6: Final answer
    x = 110,119.54

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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.