Home / 140,639.39-194,074.87-76,964.88

Finding the Fourth Proportional to 140,639.39, 194,074.87 and 76,964.88

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Solution

The fourth proportional to 140,639.39, 194,074.87 and 76,964.88 is: 106,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,639.39 : 194,074.87 = 76,964.88 : x
  2. Step 2: Convert to fraction form
    140,639.39/194,074.87 = 76,964.88/x
  3. Step 3: Cross multiply
    140,639.39x = 194,074.87 × 76,964.88
  4. Step 4: Simplify right side
    140,639.39x = 14,936,949,080.57
  5. Step 5: Solve for x
    x = 14,936,949,080.57/140,639.39
  6. Step 6: Final answer
    x = 106,207.44

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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.