Home / 189,434.52-283,904.96-76,983.30

Finding the Fourth Proportional to 189,434.52, 283,904.96 and 76,983.30

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Solution

The fourth proportional to 189,434.52, 283,904.96 and 76,983.30 is: 115,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,434.52 : 283,904.96 = 76,983.30 : x
  2. Step 2: Convert to fraction form
    189,434.52/283,904.96 = 76,983.30/x
  3. Step 3: Cross multiply
    189,434.52x = 283,904.96 × 76,983.30
  4. Step 4: Simplify right side
    189,434.52x = 21,855,940,322.25
  5. Step 5: Solve for x
    x = 21,855,940,322.25/189,434.52
  6. Step 6: Final answer
    x = 115,374.64

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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.