Home / 126,074.82-174,234.06-103,378.62

Finding the Fourth Proportional to 126,074.82, 174,234.06 and 103,378.62

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Solution

The fourth proportional to 126,074.82, 174,234.06 and 103,378.62 is: 142,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,074.82 : 174,234.06 = 103,378.62 : x
  2. Step 2: Convert to fraction form
    126,074.82/174,234.06 = 103,378.62/x
  3. Step 3: Cross multiply
    126,074.82x = 174,234.06 × 103,378.62
  4. Step 4: Simplify right side
    126,074.82x = 18,012,076,679.80
  5. Step 5: Solve for x
    x = 18,012,076,679.80/126,074.82
  6. Step 6: Final answer
    x = 142,868.15

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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.