Home / 197,835.36-272,969.64-117,222.60

Finding the Fourth Proportional to 197,835.36, 272,969.64 and 117,222.60

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Solution

The fourth proportional to 197,835.36, 272,969.64 and 117,222.60 is: 161,741.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,835.36 : 272,969.64 = 117,222.60 : x
  2. Step 2: Convert to fraction form
    197,835.36/272,969.64 = 117,222.60/x
  3. Step 3: Cross multiply
    197,835.36x = 272,969.64 × 117,222.60
  4. Step 4: Simplify right side
    197,835.36x = 31,998,210,921.86
  5. Step 5: Solve for x
    x = 31,998,210,921.86/197,835.36
  6. Step 6: Final answer
    x = 161,741.62

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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.