Home / 208,556.72-312,834.84-83,868.56

Finding the Fourth Proportional to 208,556.72, 312,834.84 and 83,868.56

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Solution

The fourth proportional to 208,556.72, 312,834.84 and 83,868.56 is: 125,802.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,556.72 : 312,834.84 = 83,868.56 : x
  2. Step 2: Convert to fraction form
    208,556.72/312,834.84 = 83,868.56/x
  3. Step 3: Cross multiply
    208,556.72x = 312,834.84 × 83,868.56
  4. Step 4: Simplify right side
    208,556.72x = 26,237,007,548.63
  5. Step 5: Solve for x
    x = 26,237,007,548.63/208,556.72
  6. Step 6: Final answer
    x = 125,802.74

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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.