Home / 189,513.21-283,816.62-109,308.04

Finding the Fourth Proportional to 189,513.21, 283,816.62 and 109,308.04

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Solution

The fourth proportional to 189,513.21, 283,816.62 and 109,308.04 is: 163,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,513.21 : 283,816.62 = 109,308.04 : x
  2. Step 2: Convert to fraction form
    189,513.21/283,816.62 = 109,308.04/x
  3. Step 3: Cross multiply
    189,513.21x = 283,816.62 × 109,308.04
  4. Step 4: Simplify right side
    189,513.21x = 31,023,437,742.08
  5. Step 5: Solve for x
    x = 31,023,437,742.08/189,513.21
  6. Step 6: Final answer
    x = 163,700.66

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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.