Home / 156,731.30-235,137.48-67,964.30

Finding the Fourth Proportional to 156,731.30, 235,137.48 and 67,964.30

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Solution

The fourth proportional to 156,731.30, 235,137.48 and 67,964.30 is: 101,964.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.30 : 235,137.48 = 67,964.30 : x
  2. Step 2: Convert to fraction form
    156,731.30/235,137.48 = 67,964.30/x
  3. Step 3: Cross multiply
    156,731.30x = 235,137.48 × 67,964.30
  4. Step 4: Simplify right side
    156,731.30x = 15,980,954,231.96
  5. Step 5: Solve for x
    x = 15,980,954,231.96/156,731.30
  6. Step 6: Final answer
    x = 101,964.03

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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.