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Finding the Fourth Proportional to 143,360.88, 197,843.48 and 79,703.38

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Solution

The fourth proportional to 143,360.88, 197,843.48 and 79,703.38 is: 109,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,360.88 : 197,843.48 = 79,703.38 : x
  2. Step 2: Convert to fraction form
    143,360.88/197,843.48 = 79,703.38/x
  3. Step 3: Cross multiply
    143,360.88x = 197,843.48 × 79,703.38
  4. Step 4: Simplify right side
    143,360.88x = 15,768,794,066.96
  5. Step 5: Solve for x
    x = 15,768,794,066.96/143,360.88
  6. Step 6: Final answer
    x = 109,993.70

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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.