Home / 149,511.12-206,326.94-81,527.52

Finding the Fourth Proportional to 149,511.12, 206,326.94 and 81,527.52

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Solution

The fourth proportional to 149,511.12, 206,326.94 and 81,527.52 is: 112,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,511.12 : 206,326.94 = 81,527.52 : x
  2. Step 2: Convert to fraction form
    149,511.12/206,326.94 = 81,527.52/x
  3. Step 3: Cross multiply
    149,511.12x = 206,326.94 × 81,527.52
  4. Step 4: Simplify right side
    149,511.12x = 16,821,323,727.39
  5. Step 5: Solve for x
    x = 16,821,323,727.39/149,511.12
  6. Step 6: Final answer
    x = 112,508.85

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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.