Home / 156,151.28-234,382.44-86,063.60

Finding the Fourth Proportional to 156,151.28, 234,382.44 and 86,063.60

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Solution

The fourth proportional to 156,151.28, 234,382.44 and 86,063.60 is: 129,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,151.28 : 234,382.44 = 86,063.60 : x
  2. Step 2: Convert to fraction form
    156,151.28/234,382.44 = 86,063.60/x
  3. Step 3: Cross multiply
    156,151.28x = 234,382.44 × 86,063.60
  4. Step 4: Simplify right side
    156,151.28x = 20,171,795,391.27
  5. Step 5: Solve for x
    x = 20,171,795,391.27/156,151.28
  6. Step 6: Final answer
    x = 129,181.11

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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.