Home / 209,002.20-313,503.30-126,058.20

Finding the Fourth Proportional to 209,002.20, 313,503.30 and 126,058.20

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Solution

The fourth proportional to 209,002.20, 313,503.30 and 126,058.20 is: 189,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,002.20 : 313,503.30 = 126,058.20 : x
  2. Step 2: Convert to fraction form
    209,002.20/313,503.30 = 126,058.20/x
  3. Step 3: Cross multiply
    209,002.20x = 313,503.30 × 126,058.20
  4. Step 4: Simplify right side
    209,002.20x = 39,519,661,692.06
  5. Step 5: Solve for x
    x = 39,519,661,692.06/209,002.20
  6. Step 6: Final answer
    x = 189,087.30

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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.