Home / 120,084.10-180,129.81-41,197.21

Finding the Fourth Proportional to 120,084.10, 180,129.81 and 41,197.21

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Solution

The fourth proportional to 120,084.10, 180,129.81 and 41,197.21 is: 61,797.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,084.10 : 180,129.81 = 41,197.21 : x
  2. Step 2: Convert to fraction form
    120,084.10/180,129.81 = 41,197.21/x
  3. Step 3: Cross multiply
    120,084.10x = 180,129.81 × 41,197.21
  4. Step 4: Simplify right side
    120,084.10x = 7,420,845,609.83
  5. Step 5: Solve for x
    x = 7,420,845,609.83/120,084.10
  6. Step 6: Final answer
    x = 61,797.07

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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.