Home / 136,481.99-188,340.09-76,049.51

Finding the Fourth Proportional to 136,481.99, 188,340.09 and 76,049.51

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Solution

The fourth proportional to 136,481.99, 188,340.09 and 76,049.51 is: 104,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,481.99 : 188,340.09 = 76,049.51 : x
  2. Step 2: Convert to fraction form
    136,481.99/188,340.09 = 76,049.51/x
  3. Step 3: Cross multiply
    136,481.99x = 188,340.09 × 76,049.51
  4. Step 4: Simplify right side
    136,481.99x = 14,323,171,557.86
  5. Step 5: Solve for x
    x = 14,323,171,557.86/136,481.99
  6. Step 6: Final answer
    x = 104,945.51

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1.5x scale

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.