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Finding the Fourth Proportional to 151,029.60, 226,479.60 and 76,120.80

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Solution

The fourth proportional to 151,029.60, 226,479.60 and 76,120.80 is: 114,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,029.60 : 226,479.60 = 76,120.80 : x
  2. Step 2: Convert to fraction form
    151,029.60/226,479.60 = 76,120.80/x
  3. Step 3: Cross multiply
    151,029.60x = 226,479.60 × 76,120.80
  4. Step 4: Simplify right side
    151,029.60x = 17,239,808,335.68
  5. Step 5: Solve for x
    x = 17,239,808,335.68/151,029.60
  6. Step 6: Final answer
    x = 114,148.54

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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.