Home / 104,440.58-144,128.20-56,693.96

Finding the Fourth Proportional to 104,440.58, 144,128.20 and 56,693.96

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Solution

The fourth proportional to 104,440.58, 144,128.20 and 56,693.96 is: 78,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,440.58 : 144,128.20 = 56,693.96 : x
  2. Step 2: Convert to fraction form
    104,440.58/144,128.20 = 56,693.96/x
  3. Step 3: Cross multiply
    104,440.58x = 144,128.20 × 56,693.96
  4. Step 4: Simplify right side
    104,440.58x = 8,171,198,405.67
  5. Step 5: Solve for x
    x = 8,171,198,405.67/104,440.58
  6. Step 6: Final answer
    x = 78,237.77

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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.