Home / 156,923.78-235,158.48-108,187.05

Finding the Fourth Proportional to 156,923.78, 235,158.48 and 108,187.05

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Solution

The fourth proportional to 156,923.78, 235,158.48 and 108,187.05 is: 162,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,923.78 : 235,158.48 = 108,187.05 : x
  2. Step 2: Convert to fraction form
    156,923.78/235,158.48 = 108,187.05/x
  3. Step 3: Cross multiply
    156,923.78x = 235,158.48 × 108,187.05
  4. Step 4: Simplify right side
    156,923.78x = 25,441,103,115.53
  5. Step 5: Solve for x
    x = 25,441,103,115.53/156,923.78
  6. Step 6: Final answer
    x = 162,123.96

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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.