Home / 128,711.20-193,092.52-44,474.40

Finding the Fourth Proportional to 128,711.20, 193,092.52 and 44,474.40

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Solution

The fourth proportional to 128,711.20, 193,092.52 and 44,474.40 is: 66,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,711.20 : 193,092.52 = 44,474.40 : x
  2. Step 2: Convert to fraction form
    128,711.20/193,092.52 = 44,474.40/x
  3. Step 3: Cross multiply
    128,711.20x = 193,092.52 × 44,474.40
  4. Step 4: Simplify right side
    128,711.20x = 8,587,673,971.49
  5. Step 5: Solve for x
    x = 8,587,673,971.49/128,711.20
  6. Step 6: Final answer
    x = 66,720.49

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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.