Home / 143,081.63-197,505.66-122,857.28

Finding the Fourth Proportional to 143,081.63, 197,505.66 and 122,857.28

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Solution

The fourth proportional to 143,081.63, 197,505.66 and 122,857.28 is: 169,588.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,081.63 : 197,505.66 = 122,857.28 : x
  2. Step 2: Convert to fraction form
    143,081.63/197,505.66 = 122,857.28/x
  3. Step 3: Cross multiply
    143,081.63x = 197,505.66 × 122,857.28
  4. Step 4: Simplify right side
    143,081.63x = 24,265,007,184.68
  5. Step 5: Solve for x
    x = 24,265,007,184.68/143,081.63
  6. Step 6: Final answer
    x = 169,588.56

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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.