Home / 104,236.37-143,895.78-69,840.33

Finding the Fourth Proportional to 104,236.37, 143,895.78 and 69,840.33

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Solution

The fourth proportional to 104,236.37, 143,895.78 and 69,840.33 is: 96,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,236.37 : 143,895.78 = 69,840.33 : x
  2. Step 2: Convert to fraction form
    104,236.37/143,895.78 = 69,840.33/x
  3. Step 3: Cross multiply
    104,236.37x = 143,895.78 × 69,840.33
  4. Step 4: Simplify right side
    104,236.37x = 10,049,728,760.81
  5. Step 5: Solve for x
    x = 10,049,728,760.81/104,236.37
  6. Step 6: Final answer
    x = 96,412.89

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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.