Home / 190,689.48-263,150.64-105,806.34

Finding the Fourth Proportional to 190,689.48, 263,150.64 and 105,806.34

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Solution

The fourth proportional to 190,689.48, 263,150.64 and 105,806.34 is: 146,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,689.48 : 263,150.64 = 105,806.34 : x
  2. Step 2: Convert to fraction form
    190,689.48/263,150.64 = 105,806.34/x
  3. Step 3: Cross multiply
    190,689.48x = 263,150.64 × 105,806.34
  4. Step 4: Simplify right side
    190,689.48x = 27,843,006,087.06
  5. Step 5: Solve for x
    x = 27,843,006,087.06/190,689.48
  6. Step 6: Final answer
    x = 146,012.28

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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.