Home / 197,474.72-272,516.40-120,993.98

Finding the Fourth Proportional to 197,474.72, 272,516.40 and 120,993.98

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Solution

The fourth proportional to 197,474.72, 272,516.40 and 120,993.98 is: 166,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,474.72 : 272,516.40 = 120,993.98 : x
  2. Step 2: Convert to fraction form
    197,474.72/272,516.40 = 120,993.98/x
  3. Step 3: Cross multiply
    197,474.72x = 272,516.40 × 120,993.98
  4. Step 4: Simplify right side
    197,474.72x = 32,972,843,851.27
  5. Step 5: Solve for x
    x = 32,972,843,851.27/197,474.72
  6. Step 6: Final answer
    x = 166,972.48

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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.