Home / 125,616.12-188,318.24-54,485.19

Finding the Fourth Proportional to 125,616.12, 188,318.24 and 54,485.19

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Solution

The fourth proportional to 125,616.12, 188,318.24 and 54,485.19 is: 81,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,616.12 : 188,318.24 = 54,485.19 : x
  2. Step 2: Convert to fraction form
    125,616.12/188,318.24 = 54,485.19/x
  3. Step 3: Cross multiply
    125,616.12x = 188,318.24 × 54,485.19
  4. Step 4: Simplify right side
    125,616.12x = 10,260,555,086.87
  5. Step 5: Solve for x
    x = 10,260,555,086.87/125,616.12
  6. Step 6: Final answer
    x = 81,681.83

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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.