Home / 197,806.62-272,955.48-117,220.50

Finding the Fourth Proportional to 197,806.62, 272,955.48 and 117,220.50

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Solution

The fourth proportional to 197,806.62, 272,955.48 and 117,220.50 is: 161,753.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,806.62 : 272,955.48 = 117,220.50 : x
  2. Step 2: Convert to fraction form
    197,806.62/272,955.48 = 117,220.50/x
  3. Step 3: Cross multiply
    197,806.62x = 272,955.48 × 117,220.50
  4. Step 4: Simplify right side
    197,806.62x = 31,995,977,843.34
  5. Step 5: Solve for x
    x = 31,995,977,843.34/197,806.62
  6. Step 6: Final answer
    x = 161,753.83

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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.