Home / 120,765.80-180,932.70-58,298.60

Finding the Fourth Proportional to 120,765.80, 180,932.70 and 58,298.60

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Solution

The fourth proportional to 120,765.80, 180,932.70 and 58,298.60 is: 87,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,765.80 : 180,932.70 = 58,298.60 : x
  2. Step 2: Convert to fraction form
    120,765.80/180,932.70 = 58,298.60/x
  3. Step 3: Cross multiply
    120,765.80x = 180,932.70 × 58,298.60
  4. Step 4: Simplify right side
    120,765.80x = 10,548,123,104.22
  5. Step 5: Solve for x
    x = 10,548,123,104.22/120,765.80
  6. Step 6: Final answer
    x = 87,343.63

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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.