Home / 198,403.16-273,874.86-138,008.84

Finding the Fourth Proportional to 198,403.16, 273,874.86 and 138,008.84

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Solution

The fourth proportional to 198,403.16, 273,874.86 and 138,008.84 is: 190,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,403.16 : 273,874.86 = 138,008.84 : x
  2. Step 2: Convert to fraction form
    198,403.16/273,874.86 = 138,008.84/x
  3. Step 3: Cross multiply
    198,403.16x = 273,874.86 × 138,008.84
  4. Step 4: Simplify right side
    198,403.16x = 37,797,150,364.39
  5. Step 5: Solve for x
    x = 37,797,150,364.39/198,403.16
  6. Step 6: Final answer
    x = 190,506.80

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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.