Home / 190,065.12-262,286.40-105,182.16

Finding the Fourth Proportional to 190,065.12, 262,286.40 and 105,182.16

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Solution

The fourth proportional to 190,065.12, 262,286.40 and 105,182.16 is: 145,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,065.12 : 262,286.40 = 105,182.16 : x
  2. Step 2: Convert to fraction form
    190,065.12/262,286.40 = 105,182.16/x
  3. Step 3: Cross multiply
    190,065.12x = 262,286.40 × 105,182.16
  4. Step 4: Simplify right side
    190,065.12x = 27,587,850,090.62
  5. Step 5: Solve for x
    x = 27,587,850,090.62/190,065.12
  6. Step 6: Final answer
    x = 145,149.46

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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.