Home / 125,425.80-188,138.58-54,290.16

Finding the Fourth Proportional to 125,425.80, 188,138.58 and 54,290.16

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Solution

The fourth proportional to 125,425.80, 188,138.58 and 54,290.16 is: 81,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,425.80 : 188,138.58 = 54,290.16 : x
  2. Step 2: Convert to fraction form
    125,425.80/188,138.58 = 54,290.16/x
  3. Step 3: Cross multiply
    125,425.80x = 188,138.58 × 54,290.16
  4. Step 4: Simplify right side
    125,425.80x = 10,214,073,610.37
  5. Step 5: Solve for x
    x = 10,214,073,610.37/125,425.80
  6. Step 6: Final answer
    x = 81,435.19

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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.