Home / 149,829.63-206,756.97-81,845.64

Finding the Fourth Proportional to 149,829.63, 206,756.97 and 81,845.64

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Solution

The fourth proportional to 149,829.63, 206,756.97 and 81,845.64 is: 112,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,829.63 : 206,756.97 = 81,845.64 : x
  2. Step 2: Convert to fraction form
    149,829.63/206,756.97 = 81,845.64/x
  3. Step 3: Cross multiply
    149,829.63x = 206,756.97 × 81,845.64
  4. Step 4: Simplify right side
    149,829.63x = 16,922,156,534.11
  5. Step 5: Solve for x
    x = 16,922,156,534.11/149,829.63
  6. Step 6: Final answer
    x = 112,942.66

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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.