Home / 190,189.10-262,469.15-105,306.17

Finding the Fourth Proportional to 190,189.10, 262,469.15 and 105,306.17

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Solution

The fourth proportional to 190,189.10, 262,469.15 and 105,306.17 is: 145,327.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,189.10 : 262,469.15 = 105,306.17 : x
  2. Step 2: Convert to fraction form
    190,189.10/262,469.15 = 105,306.17/x
  3. Step 3: Cross multiply
    190,189.10x = 262,469.15 × 105,306.17
  4. Step 4: Simplify right side
    190,189.10x = 27,639,619,090.78
  5. Step 5: Solve for x
    x = 27,639,619,090.78/190,189.10
  6. Step 6: Final answer
    x = 145,327.04

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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.