Home / 122,238.72-168,661.44-68,521.68

Finding the Fourth Proportional to 122,238.72, 168,661.44 and 68,521.68

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Solution

The fourth proportional to 122,238.72, 168,661.44 and 68,521.68 is: 94,544.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,238.72 : 168,661.44 = 68,521.68 : x
  2. Step 2: Convert to fraction form
    122,238.72/168,661.44 = 68,521.68/x
  3. Step 3: Cross multiply
    122,238.72x = 168,661.44 × 68,521.68
  4. Step 4: Simplify right side
    122,238.72x = 11,556,965,220.02
  5. Step 5: Solve for x
    x = 11,556,965,220.02/122,238.72
  6. Step 6: Final answer
    x = 94,544.23

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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.