Home / 122,255.72-168,712.77-68,540.75

Finding the Fourth Proportional to 122,255.72, 168,712.77 and 68,540.75

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Solution

The fourth proportional to 122,255.72, 168,712.77 and 68,540.75 is: 94,586.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,255.72 : 168,712.77 = 68,540.75 : x
  2. Step 2: Convert to fraction form
    122,255.72/168,712.77 = 68,540.75/x
  3. Step 3: Cross multiply
    122,255.72x = 168,712.77 × 68,540.75
  4. Step 4: Simplify right side
    122,255.72x = 11,563,699,790.38
  5. Step 5: Solve for x
    x = 11,563,699,790.38/122,255.72
  6. Step 6: Final answer
    x = 94,586.17

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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.