Home / 143,716.36-198,334.71-80,054.20

Finding the Fourth Proportional to 143,716.36, 198,334.71 and 80,054.20

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Solution

The fourth proportional to 143,716.36, 198,334.71 and 80,054.20 is: 110,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,716.36 : 198,334.71 = 80,054.20 : x
  2. Step 2: Convert to fraction form
    143,716.36/198,334.71 = 80,054.20/x
  3. Step 3: Cross multiply
    143,716.36x = 198,334.71 × 80,054.20
  4. Step 4: Simplify right side
    143,716.36x = 15,877,526,541.28
  5. Step 5: Solve for x
    x = 15,877,526,541.28/143,716.36
  6. Step 6: Final answer
    x = 110,478.21

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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.