Home / 193,091.20-289,636.80-130,105.60

Finding the Fourth Proportional to 193,091.20, 289,636.80 and 130,105.60

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Solution

The fourth proportional to 193,091.20, 289,636.80 and 130,105.60 is: 195,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,091.20 : 289,636.80 = 130,105.60 : x
  2. Step 2: Convert to fraction form
    193,091.20/289,636.80 = 130,105.60/x
  3. Step 3: Cross multiply
    193,091.20x = 289,636.80 × 130,105.60
  4. Step 4: Simplify right side
    193,091.20x = 37,683,369,646.08
  5. Step 5: Solve for x
    x = 37,683,369,646.08/193,091.20
  6. Step 6: Final answer
    x = 195,158.40

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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.