Home / 197,583.30-272,662.20-112,701.78

Finding the Fourth Proportional to 197,583.30, 272,662.20 and 112,701.78

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Solution

The fourth proportional to 197,583.30, 272,662.20 and 112,701.78 is: 155,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,583.30 : 272,662.20 = 112,701.78 : x
  2. Step 2: Convert to fraction form
    197,583.30/272,662.20 = 112,701.78/x
  3. Step 3: Cross multiply
    197,583.30x = 272,662.20 × 112,701.78
  4. Step 4: Simplify right side
    197,583.30x = 30,729,515,278.72
  5. Step 5: Solve for x
    x = 30,729,515,278.72/197,583.30
  6. Step 6: Final answer
    x = 155,526.89

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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.