Home / 80,160.88-120,126.30-45,026.60

Finding the Fourth Proportional to 80,160.88, 120,126.30 and 45,026.60

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Solution

The fourth proportional to 80,160.88, 120,126.30 and 45,026.60 is: 67,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,160.88 : 120,126.30 = 45,026.60 : x
  2. Step 2: Convert to fraction form
    80,160.88/120,126.30 = 45,026.60/x
  3. Step 3: Cross multiply
    80,160.88x = 120,126.30 × 45,026.60
  4. Step 4: Simplify right side
    80,160.88x = 5,408,878,859.58
  5. Step 5: Solve for x
    x = 5,408,878,859.58/80,160.88
  6. Step 6: Final answer
    x = 67,475.29

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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.