Home / 193,152.90-289,609.36-80,695.28

Finding the Fourth Proportional to 193,152.90, 289,609.36 and 80,695.28

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Solution

The fourth proportional to 193,152.90, 289,609.36 and 80,695.28 is: 120,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,152.90 : 289,609.36 = 80,695.28 : x
  2. Step 2: Convert to fraction form
    193,152.90/289,609.36 = 80,695.28/x
  3. Step 3: Cross multiply
    193,152.90x = 289,609.36 × 80,695.28
  4. Step 4: Simplify right side
    193,152.90x = 23,370,108,395.82
  5. Step 5: Solve for x
    x = 23,370,108,395.82/193,152.90
  6. Step 6: Final answer
    x = 120,992.79

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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.