Home / 136,819.44-188,829.71-76,394.00

Finding the Fourth Proportional to 136,819.44, 188,829.71 and 76,394.00

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Solution

The fourth proportional to 136,819.44, 188,829.71 and 76,394.00 is: 105,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,819.44 : 188,829.71 = 76,394.00 : x
  2. Step 2: Convert to fraction form
    136,819.44/188,829.71 = 76,394.00/x
  3. Step 3: Cross multiply
    136,819.44x = 188,829.71 × 76,394.00
  4. Step 4: Simplify right side
    136,819.44x = 14,425,456,609.87
  5. Step 5: Solve for x
    x = 14,425,456,609.87/136,819.44
  6. Step 6: Final answer
    x = 105,434.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.