Home / 193,485.30-289,839.15-130,499.70

Finding the Fourth Proportional to 193,485.30, 289,839.15 and 130,499.70

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Solution

The fourth proportional to 193,485.30, 289,839.15 and 130,499.70 is: 195,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,485.30 : 289,839.15 = 130,499.70 : x
  2. Step 2: Convert to fraction form
    193,485.30/289,839.15 = 130,499.70/x
  3. Step 3: Cross multiply
    193,485.30x = 289,839.15 × 130,499.70
  4. Step 4: Simplify right side
    193,485.30x = 37,823,922,123.26
  5. Step 5: Solve for x
    x = 37,823,922,123.26/193,485.30
  6. Step 6: Final answer
    x = 195,487.32

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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.