Home / 126,991.06-190,490.63-47,049.05

Finding the Fourth Proportional to 126,991.06, 190,490.63 and 47,049.05

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Solution

The fourth proportional to 126,991.06, 190,490.63 and 47,049.05 is: 70,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,991.06 : 190,490.63 = 47,049.05 : x
  2. Step 2: Convert to fraction form
    126,991.06/190,490.63 = 47,049.05/x
  3. Step 3: Cross multiply
    126,991.06x = 190,490.63 × 47,049.05
  4. Step 4: Simplify right side
    126,991.06x = 8,962,401,987.70
  5. Step 5: Solve for x
    x = 8,962,401,987.70/126,991.06
  6. Step 6: Final answer
    x = 70,575.06

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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.