Home / 190,327.09-262,641.04-105,439.09

Finding the Fourth Proportional to 190,327.09, 262,641.04 and 105,439.09

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Solution

The fourth proportional to 190,327.09, 262,641.04 and 105,439.09 is: 145,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,327.09 : 262,641.04 = 105,439.09 : x
  2. Step 2: Convert to fraction form
    190,327.09/262,641.04 = 105,439.09/x
  3. Step 3: Cross multiply
    190,327.09x = 262,641.04 × 105,439.09
  4. Step 4: Simplify right side
    190,327.09x = 27,692,632,254.25
  5. Step 5: Solve for x
    x = 27,692,632,254.25/190,327.09
  6. Step 6: Final answer
    x = 145,500.21

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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.