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Finding the Fourth Proportional to 128,316.00, 192,470.75 and 34,819.32

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Solution

The fourth proportional to 128,316.00, 192,470.75 and 34,819.32 is: 52,228.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,316.00 : 192,470.75 = 34,819.32 : x
  2. Step 2: Convert to fraction form
    128,316.00/192,470.75 = 34,819.32/x
  3. Step 3: Cross multiply
    128,316.00x = 192,470.75 × 34,819.32
  4. Step 4: Simplify right side
    128,316.00x = 6,701,699,759.58
  5. Step 5: Solve for x
    x = 6,701,699,759.58/128,316.00
  6. Step 6: Final answer
    x = 52,228.09

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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.