Home / 120,212.76-180,375.84-53,646.96

Finding the Fourth Proportional to 120,212.76, 180,375.84 and 53,646.96

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Solution

The fourth proportional to 120,212.76, 180,375.84 and 53,646.96 is: 80,495.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,212.76 : 180,375.84 = 53,646.96 : x
  2. Step 2: Convert to fraction form
    120,212.76/180,375.84 = 53,646.96/x
  3. Step 3: Cross multiply
    120,212.76x = 180,375.84 × 53,646.96
  4. Step 4: Simplify right side
    120,212.76x = 9,676,615,473.45
  5. Step 5: Solve for x
    x = 9,676,615,473.45/120,212.76
  6. Step 6: Final answer
    x = 80,495.74

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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.