Home / 156,786.60-235,179.90-155,911.80

Finding the Fourth Proportional to 156,786.60, 235,179.90 and 155,911.80

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Solution

The fourth proportional to 156,786.60, 235,179.90 and 155,911.80 is: 233,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.60 : 235,179.90 = 155,911.80 : x
  2. Step 2: Convert to fraction form
    156,786.60/235,179.90 = 155,911.80/x
  3. Step 3: Cross multiply
    156,786.60x = 235,179.90 × 155,911.80
  4. Step 4: Simplify right side
    156,786.60x = 36,667,321,532.82
  5. Step 5: Solve for x
    x = 36,667,321,532.82/156,786.60
  6. Step 6: Final answer
    x = 233,867.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.