Home / 192,728.70-289,042.02-87,524.28

Finding the Fourth Proportional to 192,728.70, 289,042.02 and 87,524.28

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Solution

The fourth proportional to 192,728.70, 289,042.02 and 87,524.28 is: 131,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,728.70 : 289,042.02 = 87,524.28 : x
  2. Step 2: Convert to fraction form
    192,728.70/289,042.02 = 87,524.28/x
  3. Step 3: Cross multiply
    192,728.70x = 289,042.02 × 87,524.28
  4. Step 4: Simplify right side
    192,728.70x = 25,298,194,690.25
  5. Step 5: Solve for x
    x = 25,298,194,690.25/192,728.70
  6. Step 6: Final answer
    x = 131,263.25

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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.