Home / 102,342.98-141,243.69-57,028.34

Finding the Fourth Proportional to 102,342.98, 141,243.69 and 57,028.34

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Solution

The fourth proportional to 102,342.98, 141,243.69 and 57,028.34 is: 78,704.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,342.98 : 141,243.69 = 57,028.34 : x
  2. Step 2: Convert to fraction form
    102,342.98/141,243.69 = 57,028.34/x
  3. Step 3: Cross multiply
    102,342.98x = 141,243.69 × 57,028.34
  4. Step 4: Simplify right side
    102,342.98x = 8,054,892,469.96
  5. Step 5: Solve for x
    x = 8,054,892,469.96/102,342.98
  6. Step 6: Final answer
    x = 78,704.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.