Home / 122,116.23-168,540.66-83,844.45

Finding the Fourth Proportional to 122,116.23, 168,540.66 and 83,844.45

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Solution

The fourth proportional to 122,116.23, 168,540.66 and 83,844.45 is: 115,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.23 : 168,540.66 = 83,844.45 : x
  2. Step 2: Convert to fraction form
    122,116.23/168,540.66 = 83,844.45/x
  3. Step 3: Cross multiply
    122,116.23x = 168,540.66 × 83,844.45
  4. Step 4: Simplify right side
    122,116.23x = 14,131,198,940.34
  5. Step 5: Solve for x
    x = 14,131,198,940.34/122,116.23
  6. Step 6: Final answer
    x = 115,719.25

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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.