Home / 80,164.20-120,246.30-38,692.20

Finding the Fourth Proportional to 80,164.20, 120,246.30 and 38,692.20

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Solution

The fourth proportional to 80,164.20, 120,246.30 and 38,692.20 is: 58,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,164.20 : 120,246.30 = 38,692.20 : x
  2. Step 2: Convert to fraction form
    80,164.20/120,246.30 = 38,692.20/x
  3. Step 3: Cross multiply
    80,164.20x = 120,246.30 × 38,692.20
  4. Step 4: Simplify right side
    80,164.20x = 4,652,593,888.86
  5. Step 5: Solve for x
    x = 4,652,593,888.86/80,164.20
  6. Step 6: Final answer
    x = 58,038.30

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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.