Home / 252,915.37-379,398.60-82,129.93

Finding the Fourth Proportional to 252,915.37, 379,398.60 and 82,129.93

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Solution

The fourth proportional to 252,915.37, 379,398.60 and 82,129.93 is: 123,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,915.37 : 379,398.60 = 82,129.93 : x
  2. Step 2: Convert to fraction form
    252,915.37/379,398.60 = 82,129.93/x
  3. Step 3: Cross multiply
    252,915.37x = 379,398.60 × 82,129.93
  4. Step 4: Simplify right side
    252,915.37x = 31,159,980,460.10
  5. Step 5: Solve for x
    x = 31,159,980,460.10/252,915.37
  6. Step 6: Final answer
    x = 123,203.19

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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.