Home / 176,120.37-263,964.02-81,218.80

Finding the Fourth Proportional to 176,120.37, 263,964.02 and 81,218.80

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Solution

The fourth proportional to 176,120.37, 263,964.02 and 81,218.80 is: 121,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,120.37 : 263,964.02 = 81,218.80 : x
  2. Step 2: Convert to fraction form
    176,120.37/263,964.02 = 81,218.80/x
  3. Step 3: Cross multiply
    176,120.37x = 263,964.02 × 81,218.80
  4. Step 4: Simplify right side
    176,120.37x = 21,438,840,947.58
  5. Step 5: Solve for x
    x = 21,438,840,947.58/176,120.37
  6. Step 6: Final answer
    x = 121,728.34

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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.