Home / 122,120.82-168,525.72-68,406.33

Finding the Fourth Proportional to 122,120.82, 168,525.72 and 68,406.33

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Solution

The fourth proportional to 122,120.82, 168,525.72 and 68,406.33 is: 94,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,120.82 : 168,525.72 = 68,406.33 : x
  2. Step 2: Convert to fraction form
    122,120.82/168,525.72 = 68,406.33/x
  3. Step 3: Cross multiply
    122,120.82x = 168,525.72 × 68,406.33
  4. Step 4: Simplify right side
    122,120.82x = 11,528,226,015.81
  5. Step 5: Solve for x
    x = 11,528,226,015.81/122,120.82
  6. Step 6: Final answer
    x = 94,400.17

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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.