Home / 120,372.48-180,195.84-64,800

Finding the Fourth Proportional to 120,372.48, 180,195.84 and 64,800

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Solution

The fourth proportional to 120,372.48, 180,195.84 and 64,800 is: 97,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372.48 : 180,195.84 = 64,800 : x
  2. Step 2: Convert to fraction form
    120,372.48/180,195.84 = 64,800/x
  3. Step 3: Cross multiply
    120,372.48x = 180,195.84 × 64,800
  4. Step 4: Simplify right side
    120,372.48x = 11,676,690,432
  5. Step 5: Solve for x
    x = 11,676,690,432/120,372.48
  6. Step 6: Final answer
    x = 97,004.65

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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.