Home / 193,036.52-289,456.04-80,686.08

Finding the Fourth Proportional to 193,036.52, 289,456.04 and 80,686.08

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Solution

The fourth proportional to 193,036.52, 289,456.04 and 80,686.08 is: 120,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,036.52 : 289,456.04 = 80,686.08 : x
  2. Step 2: Convert to fraction form
    193,036.52/289,456.04 = 80,686.08/x
  3. Step 3: Cross multiply
    193,036.52x = 289,456.04 × 80,686.08
  4. Step 4: Simplify right side
    193,036.52x = 23,355,072,796.49
  5. Step 5: Solve for x
    x = 23,355,072,796.49/193,036.52
  6. Step 6: Final answer
    x = 120,987.85

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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.