Home / 156,628.10-234,942.15-109,388.90

Finding the Fourth Proportional to 156,628.10, 234,942.15 and 109,388.90

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Solution

The fourth proportional to 156,628.10, 234,942.15 and 109,388.90 is: 164,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.10 : 234,942.15 = 109,388.90 : x
  2. Step 2: Convert to fraction form
    156,628.10/234,942.15 = 109,388.90/x
  3. Step 3: Cross multiply
    156,628.10x = 234,942.15 × 109,388.90
  4. Step 4: Simplify right side
    156,628.10x = 25,700,063,352.14
  5. Step 5: Solve for x
    x = 25,700,063,352.14/156,628.10
  6. Step 6: Final answer
    x = 164,083.35

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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.