Home / 125,518.32-173,205.54-68,932.80

Finding the Fourth Proportional to 125,518.32, 173,205.54 and 68,932.80

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Solution

The fourth proportional to 125,518.32, 173,205.54 and 68,932.80 is: 95,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,518.32 : 173,205.54 = 68,932.80 : x
  2. Step 2: Convert to fraction form
    125,518.32/173,205.54 = 68,932.80/x
  3. Step 3: Cross multiply
    125,518.32x = 173,205.54 × 68,932.80
  4. Step 4: Simplify right side
    125,518.32x = 11,939,542,847.71
  5. Step 5: Solve for x
    x = 11,939,542,847.71/125,518.32
  6. Step 6: Final answer
    x = 95,121.91

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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.