Home / 192,021.92-265,005.12-105,997.76

Finding the Fourth Proportional to 192,021.92, 265,005.12 and 105,997.76

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Solution

The fourth proportional to 192,021.92, 265,005.12 and 105,997.76 is: 146,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,021.92 : 265,005.12 = 105,997.76 : x
  2. Step 2: Convert to fraction form
    192,021.92/265,005.12 = 105,997.76/x
  3. Step 3: Cross multiply
    192,021.92x = 265,005.12 × 105,997.76
  4. Step 4: Simplify right side
    192,021.92x = 28,089,949,108.53
  5. Step 5: Solve for x
    x = 28,089,949,108.53/192,021.92
  6. Step 6: Final answer
    x = 146,285.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.