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Finding the Fourth Proportional to 164,873.60, 247,310.40 and 81,929.60

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Solution

The fourth proportional to 164,873.60, 247,310.40 and 81,929.60 is: 122,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,873.60 : 247,310.40 = 81,929.60 : x
  2. Step 2: Convert to fraction form
    164,873.60/247,310.40 = 81,929.60/x
  3. Step 3: Cross multiply
    164,873.60x = 247,310.40 × 81,929.60
  4. Step 4: Simplify right side
    164,873.60x = 20,262,042,147.84
  5. Step 5: Solve for x
    x = 20,262,042,147.84/164,873.60
  6. Step 6: Final answer
    x = 122,894.40

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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.