Home / 149,867.42-206,810.88-81,886.73

Finding the Fourth Proportional to 149,867.42, 206,810.88 and 81,886.73

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Solution

The fourth proportional to 149,867.42, 206,810.88 and 81,886.73 is: 113,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,867.42 : 206,810.88 = 81,886.73 : x
  2. Step 2: Convert to fraction form
    149,867.42/206,810.88 = 81,886.73/x
  3. Step 3: Cross multiply
    149,867.42x = 206,810.88 × 81,886.73
  4. Step 4: Simplify right side
    149,867.42x = 16,935,065,964.64
  5. Step 5: Solve for x
    x = 16,935,065,964.64/149,867.42
  6. Step 6: Final answer
    x = 113,000.32

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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.