Home / 103,826.44-143,259.06-66,086.92

Finding the Fourth Proportional to 103,826.44, 143,259.06 and 66,086.92

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Solution

The fourth proportional to 103,826.44, 143,259.06 and 66,086.92 is: 91,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,826.44 : 143,259.06 = 66,086.92 : x
  2. Step 2: Convert to fraction form
    103,826.44/143,259.06 = 66,086.92/x
  3. Step 3: Cross multiply
    103,826.44x = 143,259.06 × 66,086.92
  4. Step 4: Simplify right side
    103,826.44x = 9,467,550,037.50
  5. Step 5: Solve for x
    x = 9,467,550,037.50/103,826.44
  6. Step 6: Final answer
    x = 91,186.31

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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.