Home / 126,630.56-174,749.84-72,896

Finding the Fourth Proportional to 126,630.56, 174,749.84 and 72,896

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Solution

The fourth proportional to 126,630.56, 174,749.84 and 72,896 is: 100,596.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,630.56 : 174,749.84 = 72,896 : x
  2. Step 2: Convert to fraction form
    126,630.56/174,749.84 = 72,896/x
  3. Step 3: Cross multiply
    126,630.56x = 174,749.84 × 72,896
  4. Step 4: Simplify right side
    126,630.56x = 12,738,564,336.64
  5. Step 5: Solve for x
    x = 12,738,564,336.64/126,630.56
  6. Step 6: Final answer
    x = 100,596.29

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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.