Home / 120,766.12-180,980.46-102,903.48

Finding the Fourth Proportional to 120,766.12, 180,980.46 and 102,903.48

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Solution

The fourth proportional to 120,766.12, 180,980.46 and 102,903.48 is: 154,211.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,766.12 : 180,980.46 = 102,903.48 : x
  2. Step 2: Convert to fraction form
    120,766.12/180,980.46 = 102,903.48/x
  3. Step 3: Cross multiply
    120,766.12x = 180,980.46 × 102,903.48
  4. Step 4: Simplify right side
    120,766.12x = 18,623,519,146.00
  5. Step 5: Solve for x
    x = 18,623,519,146.00/120,766.12
  6. Step 6: Final answer
    x = 154,211.46

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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.