Home / 121,285.62-181,953.63-51,165.54

Finding the Fourth Proportional to 121,285.62, 181,953.63 and 51,165.54

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Solution

The fourth proportional to 121,285.62, 181,953.63 and 51,165.54 is: 76,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.62 : 181,953.63 = 51,165.54 : x
  2. Step 2: Convert to fraction form
    121,285.62/181,953.63 = 51,165.54/x
  3. Step 3: Cross multiply
    121,285.62x = 181,953.63 × 51,165.54
  4. Step 4: Simplify right side
    121,285.62x = 9,309,755,733.91
  5. Step 5: Solve for x
    x = 9,309,755,733.91/121,285.62
  6. Step 6: Final answer
    x = 76,758.94

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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.