Home / 197,628.48-272,731.68-117,054.72

Finding the Fourth Proportional to 197,628.48, 272,731.68 and 117,054.72

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Solution

The fourth proportional to 197,628.48, 272,731.68 and 117,054.72 is: 161,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,628.48 : 272,731.68 = 117,054.72 : x
  2. Step 2: Convert to fraction form
    197,628.48/272,731.68 = 117,054.72/x
  3. Step 3: Cross multiply
    197,628.48x = 272,731.68 × 117,054.72
  4. Step 4: Simplify right side
    197,628.48x = 31,924,530,437.53
  5. Step 5: Solve for x
    x = 31,924,530,437.53/197,628.48
  6. Step 6: Final answer
    x = 161,538.11

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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.