Home / 100,811.07-151,172.82-30,673.98

Finding the Fourth Proportional to 100,811.07, 151,172.82 and 30,673.98

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Solution

The fourth proportional to 100,811.07, 151,172.82 and 30,673.98 is: 45,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,811.07 : 151,172.82 = 30,673.98 : x
  2. Step 2: Convert to fraction form
    100,811.07/151,172.82 = 30,673.98/x
  3. Step 3: Cross multiply
    100,811.07x = 151,172.82 × 30,673.98
  4. Step 4: Simplify right side
    100,811.07x = 4,637,072,057.22
  5. Step 5: Solve for x
    x = 4,637,072,057.22/100,811.07
  6. Step 6: Final answer
    x = 45,997.65

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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.