Home / 198,427.15-273,872.80-122,012.01

Finding the Fourth Proportional to 198,427.15, 273,872.80 and 122,012.01

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Solution

The fourth proportional to 198,427.15, 273,872.80 and 122,012.01 is: 168,403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,427.15 : 273,872.80 = 122,012.01 : x
  2. Step 2: Convert to fraction form
    198,427.15/273,872.80 = 122,012.01/x
  3. Step 3: Cross multiply
    198,427.15x = 273,872.80 × 122,012.01
  4. Step 4: Simplify right side
    198,427.15x = 33,415,769,937.82
  5. Step 5: Solve for x
    x = 33,415,769,937.82/198,427.15
  6. Step 6: Final answer
    x = 168,403.21

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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.