Home / 128,904.70-193,357.05-93,912.70

Finding the Fourth Proportional to 128,904.70, 193,357.05 and 93,912.70

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Solution

The fourth proportional to 128,904.70, 193,357.05 and 93,912.70 is: 140,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,904.70 : 193,357.05 = 93,912.70 : x
  2. Step 2: Convert to fraction form
    128,904.70/193,357.05 = 93,912.70/x
  3. Step 3: Cross multiply
    128,904.70x = 193,357.05 × 93,912.70
  4. Step 4: Simplify right side
    128,904.70x = 18,158,682,629.54
  5. Step 5: Solve for x
    x = 18,158,682,629.54/128,904.70
  6. Step 6: Final answer
    x = 140,869.05

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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.