Home / 136,450.80-188,289.24-76,015.28

Finding the Fourth Proportional to 136,450.80, 188,289.24 and 76,015.28

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Solution

The fourth proportional to 136,450.80, 188,289.24 and 76,015.28 is: 104,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,450.80 : 188,289.24 = 76,015.28 : x
  2. Step 2: Convert to fraction form
    136,450.80/188,289.24 = 76,015.28/x
  3. Step 3: Cross multiply
    136,450.80x = 188,289.24 × 76,015.28
  4. Step 4: Simplify right side
    136,450.80x = 14,312,859,299.59
  5. Step 5: Solve for x
    x = 14,312,859,299.59/136,450.80
  6. Step 6: Final answer
    x = 104,893.92

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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.