Home / 102,556.57-141,535.16-57,243.37

Finding the Fourth Proportional to 102,556.57, 141,535.16 and 57,243.37

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Solution

The fourth proportional to 102,556.57, 141,535.16 and 57,243.37 is: 78,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,556.57 : 141,535.16 = 57,243.37 : x
  2. Step 2: Convert to fraction form
    102,556.57/141,535.16 = 57,243.37/x
  3. Step 3: Cross multiply
    102,556.57x = 141,535.16 × 57,243.37
  4. Step 4: Simplify right side
    102,556.57x = 8,101,948,538.00
  5. Step 5: Solve for x
    x = 8,101,948,538.00/102,556.57
  6. Step 6: Final answer
    x = 78,999.80

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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.