Home / 190,309.55-262,605.96-105,405.35

Finding the Fourth Proportional to 190,309.55, 262,605.96 and 105,405.35

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Solution

The fourth proportional to 190,309.55, 262,605.96 and 105,405.35 is: 145,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,309.55 : 262,605.96 = 105,405.35 : x
  2. Step 2: Convert to fraction form
    190,309.55/262,605.96 = 105,405.35/x
  3. Step 3: Cross multiply
    190,309.55x = 262,605.96 × 105,405.35
  4. Step 4: Simplify right side
    190,309.55x = 27,680,071,812.86
  5. Step 5: Solve for x
    x = 27,680,071,812.86/190,309.55
  6. Step 6: Final answer
    x = 145,447.63

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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.