Home / 190,875.75-263,419.47-105,998.28

Finding the Fourth Proportional to 190,875.75, 263,419.47 and 105,998.28

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Solution

The fourth proportional to 190,875.75, 263,419.47 and 105,998.28 is: 146,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,875.75 : 263,419.47 = 105,998.28 : x
  2. Step 2: Convert to fraction form
    190,875.75/263,419.47 = 105,998.28/x
  3. Step 3: Cross multiply
    190,875.75x = 263,419.47 × 105,998.28
  4. Step 4: Simplify right side
    190,875.75x = 27,922,010,738.51
  5. Step 5: Solve for x
    x = 27,922,010,738.51/190,875.75
  6. Step 6: Final answer
    x = 146,283.70

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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.