Home / 109,149.84-150,629.22-66,731.76

Finding the Fourth Proportional to 109,149.84, 150,629.22 and 66,731.76

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Solution

The fourth proportional to 109,149.84, 150,629.22 and 66,731.76 is: 92,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,149.84 : 150,629.22 = 66,731.76 : x
  2. Step 2: Convert to fraction form
    109,149.84/150,629.22 = 66,731.76/x
  3. Step 3: Cross multiply
    109,149.84x = 150,629.22 × 66,731.76
  4. Step 4: Simplify right side
    109,149.84x = 10,051,752,958.03
  5. Step 5: Solve for x
    x = 10,051,752,958.03/109,149.84
  6. Step 6: Final answer
    x = 92,091.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.