Home / 190,410.25-262,766.15-105,532.78

Finding the Fourth Proportional to 190,410.25, 262,766.15 and 105,532.78

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Solution

The fourth proportional to 190,410.25, 262,766.15 and 105,532.78 is: 145,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,410.25 : 262,766.15 = 105,532.78 : x
  2. Step 2: Convert to fraction form
    190,410.25/262,766.15 = 105,532.78/x
  3. Step 3: Cross multiply
    190,410.25x = 262,766.15 × 105,532.78
  4. Step 4: Simplify right side
    190,410.25x = 27,730,442,299.40
  5. Step 5: Solve for x
    x = 27,730,442,299.40/190,410.25
  6. Step 6: Final answer
    x = 145,635.24

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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.