Home / 125,998.12-188,993.73-54,920.72

Finding the Fourth Proportional to 125,998.12, 188,993.73 and 54,920.72

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Solution

The fourth proportional to 125,998.12, 188,993.73 and 54,920.72 is: 82,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,998.12 : 188,993.73 = 54,920.72 : x
  2. Step 2: Convert to fraction form
    125,998.12/188,993.73 = 54,920.72/x
  3. Step 3: Cross multiply
    125,998.12x = 188,993.73 × 54,920.72
  4. Step 4: Simplify right side
    125,998.12x = 10,379,671,727.09
  5. Step 5: Solve for x
    x = 10,379,671,727.09/125,998.12
  6. Step 6: Final answer
    x = 82,379.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.