Home / 197,655.36-272,478.24-122,072.64

Finding the Fourth Proportional to 197,655.36, 272,478.24 and 122,072.64

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Solution

The fourth proportional to 197,655.36, 272,478.24 and 122,072.64 is: 168,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,655.36 : 272,478.24 = 122,072.64 : x
  2. Step 2: Convert to fraction form
    197,655.36/272,478.24 = 122,072.64/x
  3. Step 3: Cross multiply
    197,655.36x = 272,478.24 × 122,072.64
  4. Step 4: Simplify right side
    197,655.36x = 33,262,138,099.35
  5. Step 5: Solve for x
    x = 33,262,138,099.35/197,655.36
  6. Step 6: Final answer
    x = 168,283.51

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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.