Home / 129,683.48-194,525.20-100,144.40

Finding the Fourth Proportional to 129,683.48, 194,525.20 and 100,144.40

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Solution

The fourth proportional to 129,683.48, 194,525.20 and 100,144.40 is: 150,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,683.48 : 194,525.20 = 100,144.40 : x
  2. Step 2: Convert to fraction form
    129,683.48/194,525.20 = 100,144.40/x
  3. Step 3: Cross multiply
    129,683.48x = 194,525.20 × 100,144.40
  4. Step 4: Simplify right side
    129,683.48x = 19,480,609,438.88
  5. Step 5: Solve for x
    x = 19,480,609,438.88/129,683.48
  6. Step 6: Final answer
    x = 150,216.58

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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.