Home / 169,443.09-253,999.38-80,672.76

Finding the Fourth Proportional to 169,443.09, 253,999.38 and 80,672.76

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Solution

The fourth proportional to 169,443.09, 253,999.38 and 80,672.76 is: 120,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,443.09 : 253,999.38 = 80,672.76 : x
  2. Step 2: Convert to fraction form
    169,443.09/253,999.38 = 80,672.76/x
  3. Step 3: Cross multiply
    169,443.09x = 253,999.38 × 80,672.76
  4. Step 4: Simplify right side
    169,443.09x = 20,490,831,022.89
  5. Step 5: Solve for x
    x = 20,490,831,022.89/169,443.09
  6. Step 6: Final answer
    x = 120,930.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.