Home / 126,364.61-174,453.21-86,137.48

Finding the Fourth Proportional to 126,364.61, 174,453.21 and 86,137.48

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Solution

The fourth proportional to 126,364.61, 174,453.21 and 86,137.48 is: 118,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,364.61 : 174,453.21 = 86,137.48 : x
  2. Step 2: Convert to fraction form
    126,364.61/174,453.21 = 86,137.48/x
  3. Step 3: Cross multiply
    126,364.61x = 174,453.21 × 86,137.48
  4. Step 4: Simplify right side
    126,364.61x = 15,026,959,456.62
  5. Step 5: Solve for x
    x = 15,026,959,456.62/126,364.61
  6. Step 6: Final answer
    x = 118,917.47

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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.