Home / 120,733.40-180,954.30-61,538.60

Finding the Fourth Proportional to 120,733.40, 180,954.30 and 61,538.60

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Solution

The fourth proportional to 120,733.40, 180,954.30 and 61,538.60 is: 92,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,733.40 : 180,954.30 = 61,538.60 : x
  2. Step 2: Convert to fraction form
    120,733.40/180,954.30 = 61,538.60/x
  3. Step 3: Cross multiply
    120,733.40x = 180,954.30 × 61,538.60
  4. Step 4: Simplify right side
    120,733.40x = 11,135,674,285.98
  5. Step 5: Solve for x
    x = 11,135,674,285.98/120,733.40
  6. Step 6: Final answer
    x = 92,233.58

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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.