Home / 126,289.56-174,280.50-68,928.36

Finding the Fourth Proportional to 126,289.56, 174,280.50 and 68,928.36

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Solution

The fourth proportional to 126,289.56, 174,280.50 and 68,928.36 is: 95,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,289.56 : 174,280.50 = 68,928.36 : x
  2. Step 2: Convert to fraction form
    126,289.56/174,280.50 = 68,928.36/x
  3. Step 3: Cross multiply
    126,289.56x = 174,280.50 × 68,928.36
  4. Step 4: Simplify right side
    126,289.56x = 12,012,869,044.98
  5. Step 5: Solve for x
    x = 12,012,869,044.98/126,289.56
  6. Step 6: Final answer
    x = 95,121.63

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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.