Home / 126,640.44-189,970.68-42,401.04

Finding the Fourth Proportional to 126,640.44, 189,970.68 and 42,401.04

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Solution

The fourth proportional to 126,640.44, 189,970.68 and 42,401.04 is: 63,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,640.44 : 189,970.68 = 42,401.04 : x
  2. Step 2: Convert to fraction form
    126,640.44/189,970.68 = 42,401.04/x
  3. Step 3: Cross multiply
    126,640.44x = 189,970.68 × 42,401.04
  4. Step 4: Simplify right side
    126,640.44x = 8,054,954,401.51
  5. Step 5: Solve for x
    x = 8,054,954,401.51/126,640.44
  6. Step 6: Final answer
    x = 63,604.91

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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.