Home / 505,983.78-758,974.95-132,006.78

Finding the Fourth Proportional to 505,983.78, 758,974.95 and 132,006.78

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Solution

The fourth proportional to 505,983.78, 758,974.95 and 132,006.78 is: 198,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,983.78 : 758,974.95 = 132,006.78 : x
  2. Step 2: Convert to fraction form
    505,983.78/758,974.95 = 132,006.78/x
  3. Step 3: Cross multiply
    505,983.78x = 758,974.95 × 132,006.78
  4. Step 4: Simplify right side
    505,983.78x = 100,189,839,250.16
  5. Step 5: Solve for x
    x = 100,189,839,250.16/505,983.78
  6. Step 6: Final answer
    x = 198,009.98

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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.