Home / 159,914.75-239,280.21-128,227.95

Finding the Fourth Proportional to 159,914.75, 239,280.21 and 128,227.95

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Solution

The fourth proportional to 159,914.75, 239,280.21 and 128,227.95 is: 191,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,914.75 : 239,280.21 = 128,227.95 : x
  2. Step 2: Convert to fraction form
    159,914.75/239,280.21 = 128,227.95/x
  3. Step 3: Cross multiply
    159,914.75x = 239,280.21 × 128,227.95
  4. Step 4: Simplify right side
    159,914.75x = 30,682,410,803.87
  5. Step 5: Solve for x
    x = 30,682,410,803.87/159,914.75
  6. Step 6: Final answer
    x = 191,867.30

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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.