Home / 126,042.60-188,885.70-69,907.44

Finding the Fourth Proportional to 126,042.60, 188,885.70 and 69,907.44

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Solution

The fourth proportional to 126,042.60, 188,885.70 and 69,907.44 is: 104,762.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,042.60 : 188,885.70 = 69,907.44 : x
  2. Step 2: Convert to fraction form
    126,042.60/188,885.70 = 69,907.44/x
  3. Step 3: Cross multiply
    126,042.60x = 188,885.70 × 69,907.44
  4. Step 4: Simplify right side
    126,042.60x = 13,204,515,739.61
  5. Step 5: Solve for x
    x = 13,204,515,739.61/126,042.60
  6. Step 6: Final answer
    x = 104,762.32

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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.