Home / 189,011.21-283,635.51-76,691.90

Finding the Fourth Proportional to 189,011.21, 283,635.51 and 76,691.90

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Solution

The fourth proportional to 189,011.21, 283,635.51 and 76,691.90 is: 115,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,011.21 : 283,635.51 = 76,691.90 : x
  2. Step 2: Convert to fraction form
    189,011.21/283,635.51 = 76,691.90/x
  3. Step 3: Cross multiply
    189,011.21x = 283,635.51 × 76,691.90
  4. Step 4: Simplify right side
    189,011.21x = 21,752,546,169.37
  5. Step 5: Solve for x
    x = 21,752,546,169.37/189,011.21
  6. Step 6: Final answer
    x = 115,086.01

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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.