Home / 148,668.26-205,172.46-84,137.81

Finding the Fourth Proportional to 148,668.26, 205,172.46 and 84,137.81

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Solution

The fourth proportional to 148,668.26, 205,172.46 and 84,137.81 is: 116,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,668.26 : 205,172.46 = 84,137.81 : x
  2. Step 2: Convert to fraction form
    148,668.26/205,172.46 = 84,137.81/x
  3. Step 3: Cross multiply
    148,668.26x = 205,172.46 × 84,137.81
  4. Step 4: Simplify right side
    148,668.26x = 17,262,760,430.85
  5. Step 5: Solve for x
    x = 17,262,760,430.85/148,668.26
  6. Step 6: Final answer
    x = 116,115.98

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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.