Home / 126,020.40-188,857.80-102,692.40

Finding the Fourth Proportional to 126,020.40, 188,857.80 and 102,692.40

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Solution

The fourth proportional to 126,020.40, 188,857.80 and 102,692.40 is: 153,897.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,020.40 : 188,857.80 = 102,692.40 : x
  2. Step 2: Convert to fraction form
    126,020.40/188,857.80 = 102,692.40/x
  3. Step 3: Cross multiply
    126,020.40x = 188,857.80 × 102,692.40
  4. Step 4: Simplify right side
    126,020.40x = 19,394,260,740.72
  5. Step 5: Solve for x
    x = 19,394,260,740.72/126,020.40
  6. Step 6: Final answer
    x = 153,897.79

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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.