Home / 189,065.33-283,643.25-54,131.28

Finding the Fourth Proportional to 189,065.33, 283,643.25 and 54,131.28

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Solution

The fourth proportional to 189,065.33, 283,643.25 and 54,131.28 is: 81,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,065.33 : 283,643.25 = 54,131.28 : x
  2. Step 2: Convert to fraction form
    189,065.33/283,643.25 = 54,131.28/x
  3. Step 3: Cross multiply
    189,065.33x = 283,643.25 × 54,131.28
  4. Step 4: Simplify right side
    189,065.33x = 15,353,972,185.86
  5. Step 5: Solve for x
    x = 15,353,972,185.86/189,065.33
  6. Step 6: Final answer
    x = 81,209.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.