Home / 190,856.96-263,390.64-105,981.92

Finding the Fourth Proportional to 190,856.96, 263,390.64 and 105,981.92

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Solution

The fourth proportional to 190,856.96, 263,390.64 and 105,981.92 is: 146,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,856.96 : 263,390.64 = 105,981.92 : x
  2. Step 2: Convert to fraction form
    190,856.96/263,390.64 = 105,981.92/x
  3. Step 3: Cross multiply
    190,856.96x = 263,390.64 × 105,981.92
  4. Step 4: Simplify right side
    190,856.96x = 27,914,645,737.23
  5. Step 5: Solve for x
    x = 27,914,645,737.23/190,856.96
  6. Step 6: Final answer
    x = 146,259.51

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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.