Home / 122,859.56-169,502.82-80,441.48

Finding the Fourth Proportional to 122,859.56, 169,502.82 and 80,441.48

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Solution

The fourth proportional to 122,859.56, 169,502.82 and 80,441.48 is: 110,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,859.56 : 169,502.82 = 80,441.48 : x
  2. Step 2: Convert to fraction form
    122,859.56/169,502.82 = 80,441.48/x
  3. Step 3: Cross multiply
    122,859.56x = 169,502.82 × 80,441.48
  4. Step 4: Simplify right side
    122,859.56x = 13,635,057,704.97
  5. Step 5: Solve for x
    x = 13,635,057,704.97/122,859.56
  6. Step 6: Final answer
    x = 110,980.84

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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.