Home / 127,199.70-190,908.90-56,231.55

Finding the Fourth Proportional to 127,199.70, 190,908.90 and 56,231.55

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Solution

The fourth proportional to 127,199.70, 190,908.90 and 56,231.55 is: 84,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,199.70 : 190,908.90 = 56,231.55 : x
  2. Step 2: Convert to fraction form
    127,199.70/190,908.90 = 56,231.55/x
  3. Step 3: Cross multiply
    127,199.70x = 190,908.90 × 56,231.55
  4. Step 4: Simplify right side
    127,199.70x = 10,735,103,355.80
  5. Step 5: Solve for x
    x = 10,735,103,355.80/127,199.70
  6. Step 6: Final answer
    x = 84,395.67

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1.5x scale

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.