Home / 130,286.34-195,458.20-74,152.87

Finding the Fourth Proportional to 130,286.34, 195,458.20 and 74,152.87

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Solution

The fourth proportional to 130,286.34, 195,458.20 and 74,152.87 is: 111,245.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,286.34 : 195,458.20 = 74,152.87 : x
  2. Step 2: Convert to fraction form
    130,286.34/195,458.20 = 74,152.87/x
  3. Step 3: Cross multiply
    130,286.34x = 195,458.20 × 74,152.87
  4. Step 4: Simplify right side
    130,286.34x = 14,493,785,821.01
  5. Step 5: Solve for x
    x = 14,493,785,821.01/130,286.34
  6. Step 6: Final answer
    x = 111,245.63

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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.