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Finding the Fourth Proportional to 130,620.21, 195,932.74 and 37,128.39

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Solution

The fourth proportional to 130,620.21, 195,932.74 and 37,128.39 is: 55,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,620.21 : 195,932.74 = 37,128.39 : x
  2. Step 2: Convert to fraction form
    130,620.21/195,932.74 = 37,128.39/x
  3. Step 3: Cross multiply
    130,620.21x = 195,932.74 × 37,128.39
  4. Step 4: Simplify right side
    130,620.21x = 7,274,667,184.49
  5. Step 5: Solve for x
    x = 7,274,667,184.49/130,620.21
  6. Step 6: Final answer
    x = 55,693.27

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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.