Home / 198,365.75-273,931.56-138,101.17

Finding the Fourth Proportional to 198,365.75, 273,931.56 and 138,101.17

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Solution

The fourth proportional to 198,365.75, 273,931.56 and 138,101.17 is: 190,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,365.75 : 273,931.56 = 138,101.17 : x
  2. Step 2: Convert to fraction form
    198,365.75/273,931.56 = 138,101.17/x
  3. Step 3: Cross multiply
    198,365.75x = 273,931.56 × 138,101.17
  4. Step 4: Simplify right side
    198,365.75x = 37,830,268,245.42
  5. Step 5: Solve for x
    x = 37,830,268,245.42/198,365.75
  6. Step 6: Final answer
    x = 190,709.68

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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.