Home / 190,456.50-262,830.21-105,586.26

Finding the Fourth Proportional to 190,456.50, 262,830.21 and 105,586.26

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Solution

The fourth proportional to 190,456.50, 262,830.21 and 105,586.26 is: 145,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,456.50 : 262,830.21 = 105,586.26 : x
  2. Step 2: Convert to fraction form
    190,456.50/262,830.21 = 105,586.26/x
  3. Step 3: Cross multiply
    190,456.50x = 262,830.21 × 105,586.26
  4. Step 4: Simplify right side
    190,456.50x = 27,751,258,888.91
  5. Step 5: Solve for x
    x = 27,751,258,888.91/190,456.50
  6. Step 6: Final answer
    x = 145,709.17

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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.