Home / 321,811.67-482,741.19-85,152.75

Finding the Fourth Proportional to 321,811.67, 482,741.19 and 85,152.75

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Solution

The fourth proportional to 321,811.67, 482,741.19 and 85,152.75 is: 127,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,811.67 : 482,741.19 = 85,152.75 : x
  2. Step 2: Convert to fraction form
    321,811.67/482,741.19 = 85,152.75/x
  3. Step 3: Cross multiply
    321,811.67x = 482,741.19 × 85,152.75
  4. Step 4: Simplify right side
    321,811.67x = 41,106,739,866.77
  5. Step 5: Solve for x
    x = 41,106,739,866.77/321,811.67
  6. Step 6: Final answer
    x = 127,735.39

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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.