Home / 123,369.36-170,257.59-69,634.77

Finding the Fourth Proportional to 123,369.36, 170,257.59 and 69,634.77

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Solution

The fourth proportional to 123,369.36, 170,257.59 and 69,634.77 is: 96,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,369.36 : 170,257.59 = 69,634.77 : x
  2. Step 2: Convert to fraction form
    123,369.36/170,257.59 = 69,634.77/x
  3. Step 3: Cross multiply
    123,369.36x = 170,257.59 × 69,634.77
  4. Step 4: Simplify right side
    123,369.36x = 11,855,848,120.40
  5. Step 5: Solve for x
    x = 11,855,848,120.40/123,369.36
  6. Step 6: Final answer
    x = 96,100.43

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1.5x scale

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.