Home / 129,745.20-194,603.40-106,330.80

Finding the Fourth Proportional to 129,745.20, 194,603.40 and 106,330.80

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Solution

The fourth proportional to 129,745.20, 194,603.40 and 106,330.80 is: 159,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,745.20 : 194,603.40 = 106,330.80 : x
  2. Step 2: Convert to fraction form
    129,745.20/194,603.40 = 106,330.80/x
  3. Step 3: Cross multiply
    129,745.20x = 194,603.40 × 106,330.80
  4. Step 4: Simplify right side
    129,745.20x = 20,692,335,204.72
  5. Step 5: Solve for x
    x = 20,692,335,204.72/129,745.20
  6. Step 6: Final answer
    x = 159,484.40

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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.