Home / 143,270.64-197,704.80-79,606.26

Finding the Fourth Proportional to 143,270.64, 197,704.80 and 79,606.26

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Solution

The fourth proportional to 143,270.64, 197,704.80 and 79,606.26 is: 109,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.64 : 197,704.80 = 79,606.26 : x
  2. Step 2: Convert to fraction form
    143,270.64/197,704.80 = 79,606.26/x
  3. Step 3: Cross multiply
    143,270.64x = 197,704.80 × 79,606.26
  4. Step 4: Simplify right side
    143,270.64x = 15,738,539,712.05
  5. Step 5: Solve for x
    x = 15,738,539,712.05/143,270.64
  6. Step 6: Final answer
    x = 109,851.81

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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.