Home / 189,835.83-284,645.91-77,384.34

Finding the Fourth Proportional to 189,835.83, 284,645.91 and 77,384.34

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Solution

The fourth proportional to 189,835.83, 284,645.91 and 77,384.34 is: 116,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,835.83 : 284,645.91 = 77,384.34 : x
  2. Step 2: Convert to fraction form
    189,835.83/284,645.91 = 77,384.34/x
  3. Step 3: Cross multiply
    189,835.83x = 284,645.91 × 77,384.34
  4. Step 4: Simplify right side
    189,835.83x = 22,027,135,879.05
  5. Step 5: Solve for x
    x = 22,027,135,879.05/189,835.83
  6. Step 6: Final answer
    x = 116,032.55

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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.