Home / 193,458.61-289,844.70-80,890.75

Finding the Fourth Proportional to 193,458.61, 289,844.70 and 80,890.75

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Solution

The fourth proportional to 193,458.61, 289,844.70 and 80,890.75 is: 121,192.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,458.61 : 289,844.70 = 80,890.75 : x
  2. Step 2: Convert to fraction form
    193,458.61/289,844.70 = 80,890.75/x
  3. Step 3: Cross multiply
    193,458.61x = 289,844.70 × 80,890.75
  4. Step 4: Simplify right side
    193,458.61x = 23,445,755,166.53
  5. Step 5: Solve for x
    x = 23,445,755,166.53/193,458.61
  6. Step 6: Final answer
    x = 121,192.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.