Home / 143,725.44-198,347.24-80,063.28

Finding the Fourth Proportional to 143,725.44, 198,347.24 and 80,063.28

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Solution

The fourth proportional to 143,725.44, 198,347.24 and 80,063.28 is: 110,490.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,725.44 : 198,347.24 = 80,063.28 : x
  2. Step 2: Convert to fraction form
    143,725.44/198,347.24 = 80,063.28/x
  3. Step 3: Cross multiply
    143,725.44x = 198,347.24 × 80,063.28
  4. Step 4: Simplify right side
    143,725.44x = 15,880,330,613.35
  5. Step 5: Solve for x
    x = 15,880,330,613.35/143,725.44
  6. Step 6: Final answer
    x = 110,490.74

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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.