Home / 189,819.36-284,778.54-56,699.64

Finding the Fourth Proportional to 189,819.36, 284,778.54 and 56,699.64

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Solution

The fourth proportional to 189,819.36, 284,778.54 and 56,699.64 is: 85,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,819.36 : 284,778.54 = 56,699.64 : x
  2. Step 2: Convert to fraction form
    189,819.36/284,778.54 = 56,699.64/x
  3. Step 3: Cross multiply
    189,819.36x = 284,778.54 × 56,699.64
  4. Step 4: Simplify right side
    189,819.36x = 16,146,840,697.73
  5. Step 5: Solve for x
    x = 16,146,840,697.73/189,819.36
  6. Step 6: Final answer
    x = 85,064.25

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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.