Home / 198,201.13-273,744.80-130,520.77

Finding the Fourth Proportional to 198,201.13, 273,744.80 and 130,520.77

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Solution

The fourth proportional to 198,201.13, 273,744.80 and 130,520.77 is: 180,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,201.13 : 273,744.80 = 130,520.77 : x
  2. Step 2: Convert to fraction form
    198,201.13/273,744.80 = 130,520.77/x
  3. Step 3: Cross multiply
    198,201.13x = 273,744.80 × 130,520.77
  4. Step 4: Simplify right side
    198,201.13x = 35,729,382,079.50
  5. Step 5: Solve for x
    x = 35,729,382,079.50/198,201.13
  6. Step 6: Final answer
    x = 180,268.31

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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.