Home / 87,999.32-131,683.64-76,193.81

Finding the Fourth Proportional to 87,999.32, 131,683.64 and 76,193.81

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Solution

The fourth proportional to 87,999.32, 131,683.64 and 76,193.81 is: 114,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.32 : 131,683.64 = 76,193.81 : x
  2. Step 2: Convert to fraction form
    87,999.32/131,683.64 = 76,193.81/x
  3. Step 3: Cross multiply
    87,999.32x = 131,683.64 × 76,193.81
  4. Step 4: Simplify right side
    87,999.32x = 10,033,477,206.88
  5. Step 5: Solve for x
    x = 10,033,477,206.88/87,999.32
  6. Step 6: Final answer
    x = 114,017.67

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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.