Home / 192,971.16-289,434.87-74,610.72

Finding the Fourth Proportional to 192,971.16, 289,434.87 and 74,610.72

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Solution

The fourth proportional to 192,971.16, 289,434.87 and 74,610.72 is: 111,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,971.16 : 289,434.87 = 74,610.72 : x
  2. Step 2: Convert to fraction form
    192,971.16/289,434.87 = 74,610.72/x
  3. Step 3: Cross multiply
    192,971.16x = 289,434.87 × 74,610.72
  4. Step 4: Simplify right side
    192,971.16x = 21,594,944,043.81
  5. Step 5: Solve for x
    x = 21,594,944,043.81/192,971.16
  6. Step 6: Final answer
    x = 111,907.62

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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.