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Finding the Fourth Proportional to 119,789.54, 179,703.30 and 39,830.48

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Solution

The fourth proportional to 119,789.54, 179,703.30 and 39,830.48 is: 59,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,789.54 : 179,703.30 = 39,830.48 : x
  2. Step 2: Convert to fraction form
    119,789.54/179,703.30 = 39,830.48/x
  3. Step 3: Cross multiply
    119,789.54x = 179,703.30 × 39,830.48
  4. Step 4: Simplify right side
    119,789.54x = 7,157,668,696.58
  5. Step 5: Solve for x
    x = 7,157,668,696.58/119,789.54
  6. Step 6: Final answer
    x = 59,752.03

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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.