Home / 210,021.54-289,829.79-114,525.78

Finding the Fourth Proportional to 210,021.54, 289,829.79 and 114,525.78

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Solution

The fourth proportional to 210,021.54, 289,829.79 and 114,525.78 is: 158,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,021.54 : 289,829.79 = 114,525.78 : x
  2. Step 2: Convert to fraction form
    210,021.54/289,829.79 = 114,525.78/x
  3. Step 3: Cross multiply
    210,021.54x = 289,829.79 × 114,525.78
  4. Step 4: Simplify right side
    210,021.54x = 33,192,982,766.99
  5. Step 5: Solve for x
    x = 33,192,982,766.99/210,021.54
  6. Step 6: Final answer
    x = 158,045.61

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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.