Home / 205,262.75-307,768.34-72,158.28

Finding the Fourth Proportional to 205,262.75, 307,768.34 and 72,158.28

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Solution

The fourth proportional to 205,262.75, 307,768.34 and 72,158.28 is: 108,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,262.75 : 307,768.34 = 72,158.28 : x
  2. Step 2: Convert to fraction form
    205,262.75/307,768.34 = 72,158.28/x
  3. Step 3: Cross multiply
    205,262.75x = 307,768.34 × 72,158.28
  4. Step 4: Simplify right side
    205,262.75x = 22,208,033,692.06
  5. Step 5: Solve for x
    x = 22,208,033,692.06/205,262.75
  6. Step 6: Final answer
    x = 108,193.20

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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.