Home / 125,738.94-173,521.84-72,028.64

Finding the Fourth Proportional to 125,738.94, 173,521.84 and 72,028.64

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Solution

The fourth proportional to 125,738.94, 173,521.84 and 72,028.64 is: 99,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,738.94 : 173,521.84 = 72,028.64 : x
  2. Step 2: Convert to fraction form
    125,738.94/173,521.84 = 72,028.64/x
  3. Step 3: Cross multiply
    125,738.94x = 173,521.84 × 72,028.64
  4. Step 4: Simplify right side
    125,738.94x = 12,498,542,145.50
  5. Step 5: Solve for x
    x = 12,498,542,145.50/125,738.94
  6. Step 6: Final answer
    x = 99,400.73

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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.