Home / 140,776.64-194,272.32-77,114.88

Finding the Fourth Proportional to 140,776.64, 194,272.32 and 77,114.88

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Solution

The fourth proportional to 140,776.64, 194,272.32 and 77,114.88 is: 106,418.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,776.64 : 194,272.32 = 77,114.88 : x
  2. Step 2: Convert to fraction form
    140,776.64/194,272.32 = 77,114.88/x
  3. Step 3: Cross multiply
    140,776.64x = 194,272.32 × 77,114.88
  4. Step 4: Simplify right side
    140,776.64x = 14,981,286,644.12
  5. Step 5: Solve for x
    x = 14,981,286,644.12/140,776.64
  6. Step 6: Final answer
    x = 106,418.84

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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.