Home / 321,621.12-482,302.08-96,912

Finding the Fourth Proportional to 321,621.12, 482,302.08 and 96,912

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Solution

The fourth proportional to 321,621.12, 482,302.08 and 96,912 is: 145,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,621.12 : 482,302.08 = 96,912 : x
  2. Step 2: Convert to fraction form
    321,621.12/482,302.08 = 96,912/x
  3. Step 3: Cross multiply
    321,621.12x = 482,302.08 × 96,912
  4. Step 4: Simplify right side
    321,621.12x = 46,740,859,176.96
  5. Step 5: Solve for x
    x = 46,740,859,176.96/321,621.12
  6. Step 6: Final answer
    x = 145,328.95

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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.