Home / 123,098.05-170,015.43-82,741.75

Finding the Fourth Proportional to 123,098.05, 170,015.43 and 82,741.75

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Solution

The fourth proportional to 123,098.05, 170,015.43 and 82,741.75 is: 114,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,098.05 : 170,015.43 = 82,741.75 : x
  2. Step 2: Convert to fraction form
    123,098.05/170,015.43 = 82,741.75/x
  3. Step 3: Cross multiply
    123,098.05x = 170,015.43 × 82,741.75
  4. Step 4: Simplify right side
    123,098.05x = 14,067,374,205.20
  5. Step 5: Solve for x
    x = 14,067,374,205.20/123,098.05
  6. Step 6: Final answer
    x = 114,277.80

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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.