Home / 103,786.24-143,216.50-58,449.76

Finding the Fourth Proportional to 103,786.24, 143,216.50 and 58,449.76

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Solution

The fourth proportional to 103,786.24, 143,216.50 and 58,449.76 is: 80,655.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786.24 : 143,216.50 = 58,449.76 : x
  2. Step 2: Convert to fraction form
    103,786.24/143,216.50 = 58,449.76/x
  3. Step 3: Cross multiply
    103,786.24x = 143,216.50 × 58,449.76
  4. Step 4: Simplify right side
    103,786.24x = 8,370,970,053.04
  5. Step 5: Solve for x
    x = 8,370,970,053.04/103,786.24
  6. Step 6: Final answer
    x = 80,655.88

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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.