Home / 122,477.84-169,006.38-68,768.72

Finding the Fourth Proportional to 122,477.84, 169,006.38 and 68,768.72

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Solution

The fourth proportional to 122,477.84, 169,006.38 and 68,768.72 is: 94,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,477.84 : 169,006.38 = 68,768.72 : x
  2. Step 2: Convert to fraction form
    122,477.84/169,006.38 = 68,768.72/x
  3. Step 3: Cross multiply
    122,477.84x = 169,006.38 × 68,768.72
  4. Step 4: Simplify right side
    122,477.84x = 11,622,352,424.43
  5. Step 5: Solve for x
    x = 11,622,352,424.43/122,477.84
  6. Step 6: Final answer
    x = 94,893.51

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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.