Home / 122,090.09-168,480.41-67,640.04

Finding the Fourth Proportional to 122,090.09, 168,480.41 and 67,640.04

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Solution

The fourth proportional to 122,090.09, 168,480.41 and 67,640.04 is: 93,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,090.09 : 168,480.41 = 67,640.04 : x
  2. Step 2: Convert to fraction form
    122,090.09/168,480.41 = 67,640.04/x
  3. Step 3: Cross multiply
    122,090.09x = 168,480.41 × 67,640.04
  4. Step 4: Simplify right side
    122,090.09x = 11,396,021,333.42
  5. Step 5: Solve for x
    x = 11,396,021,333.42/122,090.09
  6. Step 6: Final answer
    x = 93,341.09

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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.