Home / 140,320.16-193,644.72-76,660.64

Finding the Fourth Proportional to 140,320.16, 193,644.72 and 76,660.64

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Solution

The fourth proportional to 140,320.16, 193,644.72 and 76,660.64 is: 105,793.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,320.16 : 193,644.72 = 76,660.64 : x
  2. Step 2: Convert to fraction form
    140,320.16/193,644.72 = 76,660.64/x
  3. Step 3: Cross multiply
    140,320.16x = 193,644.72 × 76,660.64
  4. Step 4: Simplify right side
    140,320.16x = 14,844,928,167.82
  5. Step 5: Solve for x
    x = 14,844,928,167.82/140,320.16
  6. Step 6: Final answer
    x = 105,793.27

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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.