Home / 190,188.12-262,474.38-105,313.08

Finding the Fourth Proportional to 190,188.12, 262,474.38 and 105,313.08

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Solution

The fourth proportional to 190,188.12, 262,474.38 and 105,313.08 is: 145,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,188.12 : 262,474.38 = 105,313.08 : x
  2. Step 2: Convert to fraction form
    190,188.12/262,474.38 = 105,313.08/x
  3. Step 3: Cross multiply
    190,188.12x = 262,474.38 × 105,313.08
  4. Step 4: Simplify right side
    190,188.12x = 27,641,985,378.89
  5. Step 5: Solve for x
    x = 27,641,985,378.89/190,188.12
  6. Step 6: Final answer
    x = 145,340.23

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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.