Home / 126,821.64-190,264.04-38,076.78

Finding the Fourth Proportional to 126,821.64, 190,264.04 and 38,076.78

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Solution

The fourth proportional to 126,821.64, 190,264.04 and 38,076.78 is: 57,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,821.64 : 190,264.04 = 38,076.78 : x
  2. Step 2: Convert to fraction form
    126,821.64/190,264.04 = 38,076.78/x
  3. Step 3: Cross multiply
    126,821.64x = 190,264.04 × 38,076.78
  4. Step 4: Simplify right side
    126,821.64x = 7,244,641,992.99
  5. Step 5: Solve for x
    x = 7,244,641,992.99/126,821.64
  6. Step 6: Final answer
    x = 57,124.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.