Home / 143,546.37-198,081.09-83,121.10

Finding the Fourth Proportional to 143,546.37, 198,081.09 and 83,121.10

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Solution

The fourth proportional to 143,546.37, 198,081.09 and 83,121.10 is: 114,699.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546.37 : 198,081.09 = 83,121.10 : x
  2. Step 2: Convert to fraction form
    143,546.37/198,081.09 = 83,121.10/x
  3. Step 3: Cross multiply
    143,546.37x = 198,081.09 × 83,121.10
  4. Step 4: Simplify right side
    143,546.37x = 16,464,718,090.00
  5. Step 5: Solve for x
    x = 16,464,718,090.00/143,546.37
  6. Step 6: Final answer
    x = 114,699.65

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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.