Home / 155,311.80-232,766.10-72,028.60

Finding the Fourth Proportional to 155,311.80, 232,766.10 and 72,028.60

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Solution

The fourth proportional to 155,311.80, 232,766.10 and 72,028.60 is: 107,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,311.80 : 232,766.10 = 72,028.60 : x
  2. Step 2: Convert to fraction form
    155,311.80/232,766.10 = 72,028.60/x
  3. Step 3: Cross multiply
    155,311.80x = 232,766.10 × 72,028.60
  4. Step 4: Simplify right side
    155,311.80x = 16,765,816,310.46
  5. Step 5: Solve for x
    x = 16,765,816,310.46/155,311.80
  6. Step 6: Final answer
    x = 107,949.40

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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.