Home / 189,810.36-284,765.10-56,690.64

Finding the Fourth Proportional to 189,810.36, 284,765.10 and 56,690.64

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Solution

The fourth proportional to 189,810.36, 284,765.10 and 56,690.64 is: 85,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,810.36 : 284,765.10 = 56,690.64 : x
  2. Step 2: Convert to fraction form
    189,810.36/284,765.10 = 56,690.64/x
  3. Step 3: Cross multiply
    189,810.36x = 284,765.10 × 56,690.64
  4. Step 4: Simplify right side
    189,810.36x = 16,143,515,768.66
  5. Step 5: Solve for x
    x = 16,143,515,768.66/189,810.36
  6. Step 6: Final answer
    x = 85,050.76

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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.