Home / 100,021.09-149,985.46-36,825.34

Finding the Fourth Proportional to 100,021.09, 149,985.46 and 36,825.34

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Solution

The fourth proportional to 100,021.09, 149,985.46 and 36,825.34 is: 55,221.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,021.09 : 149,985.46 = 36,825.34 : x
  2. Step 2: Convert to fraction form
    100,021.09/149,985.46 = 36,825.34/x
  3. Step 3: Cross multiply
    100,021.09x = 149,985.46 × 36,825.34
  4. Step 4: Simplify right side
    100,021.09x = 5,523,265,559.56
  5. Step 5: Solve for x
    x = 5,523,265,559.56/100,021.09
  6. Step 6: Final answer
    x = 55,221.01

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1.5x scale

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.