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Finding the Fourth Proportional to 130,028, 195,041.36 and 41,279.60

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Solution

The fourth proportional to 130,028, 195,041.36 and 41,279.60 is: 61,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,028 : 195,041.36 = 41,279.60 : x
  2. Step 2: Convert to fraction form
    130,028/195,041.36 = 41,279.60/x
  3. Step 3: Cross multiply
    130,028x = 195,041.36 × 41,279.60
  4. Step 4: Simplify right side
    130,028x = 8,051,229,324.26
  5. Step 5: Solve for x
    x = 8,051,229,324.26/130,028
  6. Step 6: Final answer
    x = 61,919.20

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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.