Home / 122,440.37-168,954.72-68,731.29

Finding the Fourth Proportional to 122,440.37, 168,954.72 and 68,731.29

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Solution

The fourth proportional to 122,440.37, 168,954.72 and 68,731.29 is: 94,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,440.37 : 168,954.72 = 68,731.29 : x
  2. Step 2: Convert to fraction form
    122,440.37/168,954.72 = 68,731.29/x
  3. Step 3: Cross multiply
    122,440.37x = 168,954.72 × 68,731.29
  4. Step 4: Simplify right side
    122,440.37x = 11,612,475,857.19
  5. Step 5: Solve for x
    x = 11,612,475,857.19/122,440.37
  6. Step 6: Final answer
    x = 94,841.89

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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.