Home / 193,185.36-289,610.52-74,775.20

Finding the Fourth Proportional to 193,185.36, 289,610.52 and 74,775.20

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Solution

The fourth proportional to 193,185.36, 289,610.52 and 74,775.20 is: 112,097.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,185.36 : 289,610.52 = 74,775.20 : x
  2. Step 2: Convert to fraction form
    193,185.36/289,610.52 = 74,775.20/x
  3. Step 3: Cross multiply
    193,185.36x = 289,610.52 × 74,775.20
  4. Step 4: Simplify right side
    193,185.36x = 21,655,684,555.10
  5. Step 5: Solve for x
    x = 21,655,684,555.10/193,185.36
  6. Step 6: Final answer
    x = 112,097.96

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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.