Home / 215,640.45-323,343.90-97,173.09

Finding the Fourth Proportional to 215,640.45, 323,343.90 and 97,173.09

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Solution

The fourth proportional to 215,640.45, 323,343.90 and 97,173.09 is: 145,707.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,640.45 : 323,343.90 = 97,173.09 : x
  2. Step 2: Convert to fraction form
    215,640.45/323,343.90 = 97,173.09/x
  3. Step 3: Cross multiply
    215,640.45x = 323,343.90 × 97,173.09
  4. Step 4: Simplify right side
    215,640.45x = 31,420,325,895.65
  5. Step 5: Solve for x
    x = 31,420,325,895.65/215,640.45
  6. Step 6: Final answer
    x = 145,707.01

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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.