Home / 120,579.60-180,767.34-45,658.45

Finding the Fourth Proportional to 120,579.60, 180,767.34 and 45,658.45

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Solution

The fourth proportional to 120,579.60, 180,767.34 and 45,658.45 is: 68,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,579.60 : 180,767.34 = 45,658.45 : x
  2. Step 2: Convert to fraction form
    120,579.60/180,767.34 = 45,658.45/x
  3. Step 3: Cross multiply
    120,579.60x = 180,767.34 × 45,658.45
  4. Step 4: Simplify right side
    120,579.60x = 8,253,556,103.10
  5. Step 5: Solve for x
    x = 8,253,556,103.10/120,579.60
  6. Step 6: Final answer
    x = 68,449.03

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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.