Home / 143,825.49-198,480.09-80,167.32

Finding the Fourth Proportional to 143,825.49, 198,480.09 and 80,167.32

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Solution

The fourth proportional to 143,825.49, 198,480.09 and 80,167.32 is: 110,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,825.49 : 198,480.09 = 80,167.32 : x
  2. Step 2: Convert to fraction form
    143,825.49/198,480.09 = 80,167.32/x
  3. Step 3: Cross multiply
    143,825.49x = 198,480.09 × 80,167.32
  4. Step 4: Simplify right side
    143,825.49x = 15,911,616,888.66
  5. Step 5: Solve for x
    x = 15,911,616,888.66/143,825.49
  6. Step 6: Final answer
    x = 110,631.41

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1.5x scale

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.