Home / 143,385.66-197,871.75-79,723.44

Finding the Fourth Proportional to 143,385.66, 197,871.75 and 79,723.44

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Solution

The fourth proportional to 143,385.66, 197,871.75 and 79,723.44 is: 110,018.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385.66 : 197,871.75 = 79,723.44 : x
  2. Step 2: Convert to fraction form
    143,385.66/197,871.75 = 79,723.44/x
  3. Step 3: Cross multiply
    143,385.66x = 197,871.75 × 79,723.44
  4. Step 4: Simplify right side
    143,385.66x = 15,775,016,588.82
  5. Step 5: Solve for x
    x = 15,775,016,588.82/143,385.66
  6. Step 6: Final answer
    x = 110,018.09

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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.