Home / 143,886.55-198,563.45-80,224.36

Finding the Fourth Proportional to 143,886.55, 198,563.45 and 80,224.36

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Solution

The fourth proportional to 143,886.55, 198,563.45 and 80,224.36 is: 110,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,886.55 : 198,563.45 = 80,224.36 : x
  2. Step 2: Convert to fraction form
    143,886.55/198,563.45 = 80,224.36/x
  3. Step 3: Cross multiply
    143,886.55x = 198,563.45 × 80,224.36
  4. Step 4: Simplify right side
    143,886.55x = 15,929,625,695.64
  5. Step 5: Solve for x
    x = 15,929,625,695.64/143,886.55
  6. Step 6: Final answer
    x = 110,709.62

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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.