Home / 143,716.59-198,335.03-80,054.37

Finding the Fourth Proportional to 143,716.59, 198,335.03 and 80,054.37

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Solution

The fourth proportional to 143,716.59, 198,335.03 and 80,054.37 is: 110,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,716.59 : 198,335.03 = 80,054.37 : x
  2. Step 2: Convert to fraction form
    143,716.59/198,335.03 = 80,054.37/x
  3. Step 3: Cross multiply
    143,716.59x = 198,335.03 × 80,054.37
  4. Step 4: Simplify right side
    143,716.59x = 15,877,585,475.31
  5. Step 5: Solve for x
    x = 15,877,585,475.31/143,716.59
  6. Step 6: Final answer
    x = 110,478.45

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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.