Home / 129,000.20-193,241.10-73,531.40

Finding the Fourth Proportional to 129,000.20, 193,241.10 and 73,531.40

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Solution

The fourth proportional to 129,000.20, 193,241.10 and 73,531.40 is: 110,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,000.20 : 193,241.10 = 73,531.40 : x
  2. Step 2: Convert to fraction form
    129,000.20/193,241.10 = 73,531.40/x
  3. Step 3: Cross multiply
    129,000.20x = 193,241.10 × 73,531.40
  4. Step 4: Simplify right side
    129,000.20x = 14,209,288,620.54
  5. Step 5: Solve for x
    x = 14,209,288,620.54/129,000.20
  6. Step 6: Final answer
    x = 110,149.35

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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.