Home / 122,550.31-169,099.61-76,604.58

Finding the Fourth Proportional to 122,550.31, 169,099.61 and 76,604.58

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Solution

The fourth proportional to 122,550.31, 169,099.61 and 76,604.58 is: 105,701.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,550.31 : 169,099.61 = 76,604.58 : x
  2. Step 2: Convert to fraction form
    122,550.31/169,099.61 = 76,604.58/x
  3. Step 3: Cross multiply
    122,550.31x = 169,099.61 × 76,604.58
  4. Step 4: Simplify right side
    122,550.31x = 12,953,804,219.19
  5. Step 5: Solve for x
    x = 12,953,804,219.19/122,550.31
  6. Step 6: Final answer
    x = 105,701.93

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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.