Home / 193,216.80-289,436.40-130,231.20

Finding the Fourth Proportional to 193,216.80, 289,436.40 and 130,231.20

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Solution

The fourth proportional to 193,216.80, 289,436.40 and 130,231.20 is: 195,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,216.80 : 289,436.40 = 130,231.20 : x
  2. Step 2: Convert to fraction form
    193,216.80/289,436.40 = 130,231.20/x
  3. Step 3: Cross multiply
    193,216.80x = 289,436.40 × 130,231.20
  4. Step 4: Simplify right side
    193,216.80x = 37,693,649,695.68
  5. Step 5: Solve for x
    x = 37,693,649,695.68/193,216.80
  6. Step 6: Final answer
    x = 195,084.74

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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.