Home / 120,664.22-180,965.98-49,606.68

Finding the Fourth Proportional to 120,664.22, 180,965.98 and 49,606.68

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Solution

The fourth proportional to 120,664.22, 180,965.98 and 49,606.68 is: 74,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.22 : 180,965.98 = 49,606.68 : x
  2. Step 2: Convert to fraction form
    120,664.22/180,965.98 = 49,606.68/x
  3. Step 3: Cross multiply
    120,664.22x = 180,965.98 × 49,606.68
  4. Step 4: Simplify right side
    120,664.22x = 8,977,121,460.75
  5. Step 5: Solve for x
    x = 8,977,121,460.75/120,664.22
  6. Step 6: Final answer
    x = 74,397.54

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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.