Home / 193,546.80-289,931.40-130,561.20

Finding the Fourth Proportional to 193,546.80, 289,931.40 and 130,561.20

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Solution

The fourth proportional to 193,546.80, 289,931.40 and 130,561.20 is: 195,579.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,546.80 : 289,931.40 = 130,561.20 : x
  2. Step 2: Convert to fraction form
    193,546.80/289,931.40 = 130,561.20/x
  3. Step 3: Cross multiply
    193,546.80x = 289,931.40 × 130,561.20
  4. Step 4: Simplify right side
    193,546.80x = 37,853,791,501.68
  5. Step 5: Solve for x
    x = 37,853,791,501.68/193,546.80
  6. Step 6: Final answer
    x = 195,579.53

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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.