Home / 122,636.30-169,299.33-80,259.56

Finding the Fourth Proportional to 122,636.30, 169,299.33 and 80,259.56

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Solution

The fourth proportional to 122,636.30, 169,299.33 and 80,259.56 is: 110,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,636.30 : 169,299.33 = 80,259.56 : x
  2. Step 2: Convert to fraction form
    122,636.30/169,299.33 = 80,259.56/x
  3. Step 3: Cross multiply
    122,636.30x = 169,299.33 × 80,259.56
  4. Step 4: Simplify right side
    122,636.30x = 13,587,889,734.09
  5. Step 5: Solve for x
    x = 13,587,889,734.09/122,636.30
  6. Step 6: Final answer
    x = 110,798.27

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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.