Home / 120,629.34-180,944.03-82,641.15

Finding the Fourth Proportional to 120,629.34, 180,944.03 and 82,641.15

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Solution

The fourth proportional to 120,629.34, 180,944.03 and 82,641.15 is: 123,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629.34 : 180,944.03 = 82,641.15 : x
  2. Step 2: Convert to fraction form
    120,629.34/180,944.03 = 82,641.15/x
  3. Step 3: Cross multiply
    120,629.34x = 180,944.03 × 82,641.15
  4. Step 4: Simplify right side
    120,629.34x = 14,953,422,311.63
  5. Step 5: Solve for x
    x = 14,953,422,311.63/120,629.34
  6. Step 6: Final answer
    x = 123,961.74

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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.