Home / 140,583.87-194,005.53-76,921.65

Finding the Fourth Proportional to 140,583.87, 194,005.53 and 76,921.65

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Solution

The fourth proportional to 140,583.87, 194,005.53 and 76,921.65 is: 106,151.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,583.87 : 194,005.53 = 76,921.65 : x
  2. Step 2: Convert to fraction form
    140,583.87/194,005.53 = 76,921.65/x
  3. Step 3: Cross multiply
    140,583.87x = 194,005.53 × 76,921.65
  4. Step 4: Simplify right side
    140,583.87x = 14,923,225,476.72
  5. Step 5: Solve for x
    x = 14,923,225,476.72/140,583.87
  6. Step 6: Final answer
    x = 106,151.76

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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.