Home / 123,723.78-170,738.83-70,007.70

Finding the Fourth Proportional to 123,723.78, 170,738.83 and 70,007.70

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Solution

The fourth proportional to 123,723.78, 170,738.83 and 70,007.70 is: 96,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.78 : 170,738.83 = 70,007.70 : x
  2. Step 2: Convert to fraction form
    123,723.78/170,738.83 = 70,007.70/x
  3. Step 3: Cross multiply
    123,723.78x = 170,738.83 × 70,007.70
  4. Step 4: Simplify right side
    123,723.78x = 11,953,032,788.99
  5. Step 5: Solve for x
    x = 11,953,032,788.99/123,723.78
  6. Step 6: Final answer
    x = 96,610.63

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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.