Home / 190,563.60-262,977.69-105,680.67

Finding the Fourth Proportional to 190,563.60, 262,977.69 and 105,680.67

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Solution

The fourth proportional to 190,563.60, 262,977.69 and 105,680.67 is: 145,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,563.60 : 262,977.69 = 105,680.67 : x
  2. Step 2: Convert to fraction form
    190,563.60/262,977.69 = 105,680.67/x
  3. Step 3: Cross multiply
    190,563.60x = 262,977.69 × 105,680.67
  4. Step 4: Simplify right side
    190,563.60x = 27,791,658,474.25
  5. Step 5: Solve for x
    x = 27,791,658,474.25/190,563.60
  6. Step 6: Final answer
    x = 145,839.28

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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.