Home / 126,427.62-174,504.87-78,652.47

Finding the Fourth Proportional to 126,427.62, 174,504.87 and 78,652.47

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Solution

The fourth proportional to 126,427.62, 174,504.87 and 78,652.47 is: 108,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,427.62 : 174,504.87 = 78,652.47 : x
  2. Step 2: Convert to fraction form
    126,427.62/174,504.87 = 78,652.47/x
  3. Step 3: Cross multiply
    126,427.62x = 174,504.87 × 78,652.47
  4. Step 4: Simplify right side
    126,427.62x = 13,725,239,052.53
  5. Step 5: Solve for x
    x = 13,725,239,052.53/126,427.62
  6. Step 6: Final answer
    x = 108,562.03

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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.