Home / 119,739.72-165,240.48-66,025.56

Finding the Fourth Proportional to 119,739.72, 165,240.48 and 66,025.56

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Solution

The fourth proportional to 119,739.72, 165,240.48 and 66,025.56 is: 91,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,739.72 : 165,240.48 = 66,025.56 : x
  2. Step 2: Convert to fraction form
    119,739.72/165,240.48 = 66,025.56/x
  3. Step 3: Cross multiply
    119,739.72x = 165,240.48 × 66,025.56
  4. Step 4: Simplify right side
    119,739.72x = 10,910,095,226.67
  5. Step 5: Solve for x
    x = 10,910,095,226.67/119,739.72
  6. Step 6: Final answer
    x = 91,115.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.