Home / 123,695.40-170,694.41-69,981.33

Finding the Fourth Proportional to 123,695.40, 170,694.41 and 69,981.33

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Solution

The fourth proportional to 123,695.40, 170,694.41 and 69,981.33 is: 96,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,695.40 : 170,694.41 = 69,981.33 : x
  2. Step 2: Convert to fraction form
    123,695.40/170,694.41 = 69,981.33/x
  3. Step 3: Cross multiply
    123,695.40x = 170,694.41 × 69,981.33
  4. Step 4: Simplify right side
    123,695.40x = 11,945,420,631.99
  5. Step 5: Solve for x
    x = 11,945,420,631.99/123,695.40
  6. Step 6: Final answer
    x = 96,571.26

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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.