Home / 128,205.45-192,308.18-34,711.05

Finding the Fourth Proportional to 128,205.45, 192,308.18 and 34,711.05

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Solution

The fourth proportional to 128,205.45, 192,308.18 and 34,711.05 is: 52,066.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,205.45 : 192,308.18 = 34,711.05 : x
  2. Step 2: Convert to fraction form
    128,205.45/192,308.18 = 34,711.05/x
  3. Step 3: Cross multiply
    128,205.45x = 192,308.18 × 34,711.05
  4. Step 4: Simplify right side
    128,205.45x = 6,675,218,677.83
  5. Step 5: Solve for x
    x = 6,675,218,677.83/128,205.45
  6. Step 6: Final answer
    x = 52,066.58

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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.