Home / 100,766.80-151,247.40-50,903.20

Finding the Fourth Proportional to 100,766.80, 151,247.40 and 50,903.20

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Solution

The fourth proportional to 100,766.80, 151,247.40 and 50,903.20 is: 76,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,766.80 : 151,247.40 = 50,903.20 : x
  2. Step 2: Convert to fraction form
    100,766.80/151,247.40 = 50,903.20/x
  3. Step 3: Cross multiply
    100,766.80x = 151,247.40 × 50,903.20
  4. Step 4: Simplify right side
    100,766.80x = 7,698,976,651.68
  5. Step 5: Solve for x
    x = 7,698,976,651.68/100,766.80
  6. Step 6: Final answer
    x = 76,403.90

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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.