Home / 143,274.64-197,710.32-79,610.26

Finding the Fourth Proportional to 143,274.64, 197,710.32 and 79,610.26

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Solution

The fourth proportional to 143,274.64, 197,710.32 and 79,610.26 is: 109,857.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,274.64 : 197,710.32 = 79,610.26 : x
  2. Step 2: Convert to fraction form
    143,274.64/197,710.32 = 79,610.26/x
  3. Step 3: Cross multiply
    143,274.64x = 197,710.32 × 79,610.26
  4. Step 4: Simplify right side
    143,274.64x = 15,739,769,979.88
  5. Step 5: Solve for x
    x = 15,739,769,979.88/143,274.64
  6. Step 6: Final answer
    x = 109,857.33

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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.