Home / 252,914.37-379,397.10-82,128.93

Finding the Fourth Proportional to 252,914.37, 379,397.10 and 82,128.93

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Solution

The fourth proportional to 252,914.37, 379,397.10 and 82,128.93 is: 123,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,914.37 : 379,397.10 = 82,128.93 : x
  2. Step 2: Convert to fraction form
    252,914.37/379,397.10 = 82,128.93/x
  3. Step 3: Cross multiply
    252,914.37x = 379,397.10 × 82,128.93
  4. Step 4: Simplify right side
    252,914.37x = 31,159,477,868.10
  5. Step 5: Solve for x
    x = 31,159,477,868.10/252,914.37
  6. Step 6: Final answer
    x = 123,201.69

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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.