Home / 143,552.76-198,080.46-79,890.36

Finding the Fourth Proportional to 143,552.76, 198,080.46 and 79,890.36

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Solution

The fourth proportional to 143,552.76, 198,080.46 and 79,890.36 is: 110,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,552.76 : 198,080.46 = 79,890.36 : x
  2. Step 2: Convert to fraction form
    143,552.76/198,080.46 = 79,890.36/x
  3. Step 3: Cross multiply
    143,552.76x = 198,080.46 × 79,890.36
  4. Step 4: Simplify right side
    143,552.76x = 15,824,719,258.37
  5. Step 5: Solve for x
    x = 15,824,719,258.37/143,552.76
  6. Step 6: Final answer
    x = 110,236.26

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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.