Home / 198,130.56-273,414.80-120,577.08

Finding the Fourth Proportional to 198,130.56, 273,414.80 and 120,577.08

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Solution

The fourth proportional to 198,130.56, 273,414.80 and 120,577.08 is: 166,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,130.56 : 273,414.80 = 120,577.08 : x
  2. Step 2: Convert to fraction form
    198,130.56/273,414.80 = 120,577.08/x
  3. Step 3: Cross multiply
    198,130.56x = 273,414.80 × 120,577.08
  4. Step 4: Simplify right side
    198,130.56x = 32,967,558,212.78
  5. Step 5: Solve for x
    x = 32,967,558,212.78/198,130.56
  6. Step 6: Final answer
    x = 166,393.10

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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.