Home / 104,821.20-144,649.98-57,074.24

Finding the Fourth Proportional to 104,821.20, 144,649.98 and 57,074.24

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Solution

The fourth proportional to 104,821.20, 144,649.98 and 57,074.24 is: 78,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,821.20 : 144,649.98 = 57,074.24 : x
  2. Step 2: Convert to fraction form
    104,821.20/144,649.98 = 57,074.24/x
  3. Step 3: Cross multiply
    104,821.20x = 144,649.98 × 57,074.24
  4. Step 4: Simplify right side
    104,821.20x = 8,255,787,674.52
  5. Step 5: Solve for x
    x = 8,255,787,674.52/104,821.20
  6. Step 6: Final answer
    x = 78,760.67

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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.