Home / 156,276.96-234,450.24-86,120.16

Finding the Fourth Proportional to 156,276.96, 234,450.24 and 86,120.16

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Solution

The fourth proportional to 156,276.96, 234,450.24 and 86,120.16 is: 129,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,276.96 : 234,450.24 = 86,120.16 : x
  2. Step 2: Convert to fraction form
    156,276.96/234,450.24 = 86,120.16/x
  3. Step 3: Cross multiply
    156,276.96x = 234,450.24 × 86,120.16
  4. Step 4: Simplify right side
    156,276.96x = 20,190,892,180.84
  5. Step 5: Solve for x
    x = 20,190,892,180.84/156,276.96
  6. Step 6: Final answer
    x = 129,199.42

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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.