Home / 104,619.20-144,372.80-56,873.75

Finding the Fourth Proportional to 104,619.20, 144,372.80 and 56,873.75

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Solution

The fourth proportional to 104,619.20, 144,372.80 and 56,873.75 is: 78,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,619.20 : 144,372.80 = 56,873.75 : x
  2. Step 2: Convert to fraction form
    104,619.20/144,372.80 = 56,873.75/x
  3. Step 3: Cross multiply
    104,619.20x = 144,372.80 × 56,873.75
  4. Step 4: Simplify right side
    104,619.20x = 8,211,022,249.63
  5. Step 5: Solve for x
    x = 8,211,022,249.63/104,619.20
  6. Step 6: Final answer
    x = 78,484.85

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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.