Home / 83,692.72-125,991.55-76,244.15

Finding the Fourth Proportional to 83,692.72, 125,991.55 and 76,244.15

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Solution

The fourth proportional to 83,692.72, 125,991.55 and 76,244.15 is: 114,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,692.72 : 125,991.55 = 76,244.15 : x
  2. Step 2: Convert to fraction form
    83,692.72/125,991.55 = 76,244.15/x
  3. Step 3: Cross multiply
    83,692.72x = 125,991.55 × 76,244.15
  4. Step 4: Simplify right side
    83,692.72x = 9,606,118,636.93
  5. Step 5: Solve for x
    x = 9,606,118,636.93/83,692.72
  6. Step 6: Final answer
    x = 114,778.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.