Home / 100,817.80-151,121.09-37,612.49

Finding the Fourth Proportional to 100,817.80, 151,121.09 and 37,612.49

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Solution

The fourth proportional to 100,817.80, 151,121.09 and 37,612.49 is: 56,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,817.80 : 151,121.09 = 37,612.49 : x
  2. Step 2: Convert to fraction form
    100,817.80/151,121.09 = 37,612.49/x
  3. Step 3: Cross multiply
    100,817.80x = 151,121.09 × 37,612.49
  4. Step 4: Simplify right side
    100,817.80x = 5,684,039,824.84
  5. Step 5: Solve for x
    x = 5,684,039,824.84/100,817.80
  6. Step 6: Final answer
    x = 56,379.33

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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.