Home / 104,659.48-144,431.94-56,912.68

Finding the Fourth Proportional to 104,659.48, 144,431.94 and 56,912.68

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Solution

The fourth proportional to 104,659.48, 144,431.94 and 56,912.68 is: 78,540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.48 : 144,431.94 = 56,912.68 : x
  2. Step 2: Convert to fraction form
    104,659.48/144,431.94 = 56,912.68/x
  3. Step 3: Cross multiply
    104,659.48x = 144,431.94 × 56,912.68
  4. Step 4: Simplify right side
    104,659.48x = 8,220,008,783.00
  5. Step 5: Solve for x
    x = 8,220,008,783.00/104,659.48
  6. Step 6: Final answer
    x = 78,540.51

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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.