Home / 149,432.41-206,216.88-81,449.44

Finding the Fourth Proportional to 149,432.41, 206,216.88 and 81,449.44

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Solution

The fourth proportional to 149,432.41, 206,216.88 and 81,449.44 is: 112,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,432.41 : 206,216.88 = 81,449.44 : x
  2. Step 2: Convert to fraction form
    149,432.41/206,216.88 = 81,449.44/x
  3. Step 3: Cross multiply
    149,432.41x = 206,216.88 × 81,449.44
  4. Step 4: Simplify right side
    149,432.41x = 16,796,249,394.55
  5. Step 5: Solve for x
    x = 16,796,249,394.55/149,432.41
  6. Step 6: Final answer
    x = 112,400.31

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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.