Home / 125,451.09-173,200.55-87,198.57

Finding the Fourth Proportional to 125,451.09, 173,200.55 and 87,198.57

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Solution

The fourth proportional to 125,451.09, 173,200.55 and 87,198.57 is: 120,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,451.09 : 173,200.55 = 87,198.57 : x
  2. Step 2: Convert to fraction form
    125,451.09/173,200.55 = 87,198.57/x
  3. Step 3: Cross multiply
    125,451.09x = 173,200.55 × 87,198.57
  4. Step 4: Simplify right side
    125,451.09x = 15,102,839,847.22
  5. Step 5: Solve for x
    x = 15,102,839,847.22/125,451.09
  6. Step 6: Final answer
    x = 120,388.27

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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.