Home / 143,824.49-198,478.71-80,166.32

Finding the Fourth Proportional to 143,824.49, 198,478.71 and 80,166.32

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Solution

The fourth proportional to 143,824.49, 198,478.71 and 80,166.32 is: 110,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,824.49 : 198,478.71 = 80,166.32 : x
  2. Step 2: Convert to fraction form
    143,824.49/198,478.71 = 80,166.32/x
  3. Step 3: Cross multiply
    143,824.49x = 198,478.71 × 80,166.32
  4. Step 4: Simplify right side
    143,824.49x = 15,911,306,786.65
  5. Step 5: Solve for x
    x = 15,911,306,786.65/143,824.49
  6. Step 6: Final answer
    x = 110,630.03

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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.