Home / 197,985.09-273,218.55-107,340.77

Finding the Fourth Proportional to 197,985.09, 273,218.55 and 107,340.77

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Solution

The fourth proportional to 197,985.09, 273,218.55 and 107,340.77 is: 148,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,985.09 : 273,218.55 = 107,340.77 : x
  2. Step 2: Convert to fraction form
    197,985.09/273,218.55 = 107,340.77/x
  3. Step 3: Cross multiply
    197,985.09x = 273,218.55 × 107,340.77
  4. Step 4: Simplify right side
    197,985.09x = 29,327,489,535.28
  5. Step 5: Solve for x
    x = 29,327,489,535.28/197,985.09
  6. Step 6: Final answer
    x = 148,129.79

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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.