Home / 120,534.15-180,759.29-49,436.60

Finding the Fourth Proportional to 120,534.15, 180,759.29 and 49,436.60

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Solution

The fourth proportional to 120,534.15, 180,759.29 and 49,436.60 is: 74,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,534.15 : 180,759.29 = 49,436.60 : x
  2. Step 2: Convert to fraction form
    120,534.15/180,759.29 = 49,436.60/x
  3. Step 3: Cross multiply
    120,534.15x = 180,759.29 × 49,436.60
  4. Step 4: Simplify right side
    120,534.15x = 8,936,124,716.01
  5. Step 5: Solve for x
    x = 8,936,124,716.01/120,534.15
  6. Step 6: Final answer
    x = 74,137.70

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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.