Home / 190,125.54-262,370.07-105,240.78

Finding the Fourth Proportional to 190,125.54, 262,370.07 and 105,240.78

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Solution

The fourth proportional to 190,125.54, 262,370.07 and 105,240.78 is: 145,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,125.54 : 262,370.07 = 105,240.78 : x
  2. Step 2: Convert to fraction form
    190,125.54/262,370.07 = 105,240.78/x
  3. Step 3: Cross multiply
    190,125.54x = 262,370.07 × 105,240.78
  4. Step 4: Simplify right side
    190,125.54x = 27,612,030,815.45
  5. Step 5: Solve for x
    x = 27,612,030,815.45/190,125.54
  6. Step 6: Final answer
    x = 145,230.52

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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.