Home / 143,664.83-198,257.46-83,270.51

Finding the Fourth Proportional to 143,664.83, 198,257.46 and 83,270.51

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Solution

The fourth proportional to 143,664.83, 198,257.46 and 83,270.51 is: 114,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,664.83 : 198,257.46 = 83,270.51 : x
  2. Step 2: Convert to fraction form
    143,664.83/198,257.46 = 83,270.51/x
  3. Step 3: Cross multiply
    143,664.83x = 198,257.46 × 83,270.51
  4. Step 4: Simplify right side
    143,664.83x = 16,508,999,805.50
  5. Step 5: Solve for x
    x = 16,508,999,805.50/143,664.83
  6. Step 6: Final answer
    x = 114,913.30

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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.