Home / 100,811.52-151,129.80-50,849.91

Finding the Fourth Proportional to 100,811.52, 151,129.80 and 50,849.91

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Solution

The fourth proportional to 100,811.52, 151,129.80 and 50,849.91 is: 76,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,811.52 : 151,129.80 = 50,849.91 : x
  2. Step 2: Convert to fraction form
    100,811.52/151,129.80 = 50,849.91/x
  3. Step 3: Cross multiply
    100,811.52x = 151,129.80 × 50,849.91
  4. Step 4: Simplify right side
    100,811.52x = 7,684,936,728.32
  5. Step 5: Solve for x
    x = 7,684,936,728.32/100,811.52
  6. Step 6: Final answer
    x = 76,230.74

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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.