Home / 122,309.30-168,805.29-74,590.33

Finding the Fourth Proportional to 122,309.30, 168,805.29 and 74,590.33

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Solution

The fourth proportional to 122,309.30, 168,805.29 and 74,590.33 is: 102,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,309.30 : 168,805.29 = 74,590.33 : x
  2. Step 2: Convert to fraction form
    122,309.30/168,805.29 = 74,590.33/x
  3. Step 3: Cross multiply
    122,309.30x = 168,805.29 × 74,590.33
  4. Step 4: Simplify right side
    122,309.30x = 12,591,242,286.85
  5. Step 5: Solve for x
    x = 12,591,242,286.85/122,309.30
  6. Step 6: Final answer
    x = 102,945.91

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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.