Home / 120,221.26-180,204.72-45,308.94

Finding the Fourth Proportional to 120,221.26, 180,204.72 and 45,308.94

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Solution

The fourth proportional to 120,221.26, 180,204.72 and 45,308.94 is: 67,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,221.26 : 180,204.72 = 45,308.94 : x
  2. Step 2: Convert to fraction form
    120,221.26/180,204.72 = 45,308.94/x
  3. Step 3: Cross multiply
    120,221.26x = 180,204.72 × 45,308.94
  4. Step 4: Simplify right side
    120,221.26x = 8,164,884,846.20
  5. Step 5: Solve for x
    x = 8,164,884,846.20/120,221.26
  6. Step 6: Final answer
    x = 67,915.48

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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.