Home / 136,916.03-188,930.53-76,485.37

Finding the Fourth Proportional to 136,916.03, 188,930.53 and 76,485.37

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Solution

The fourth proportional to 136,916.03, 188,930.53 and 76,485.37 is: 105,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,916.03 : 188,930.53 = 76,485.37 : x
  2. Step 2: Convert to fraction form
    136,916.03/188,930.53 = 76,485.37/x
  3. Step 3: Cross multiply
    136,916.03x = 188,930.53 × 76,485.37
  4. Step 4: Simplify right side
    136,916.03x = 14,450,421,491.35
  5. Step 5: Solve for x
    x = 14,450,421,491.35/136,916.03
  6. Step 6: Final answer
    x = 105,542.22

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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.