Home / 156,630.10-234,945.15-109,390.90

Finding the Fourth Proportional to 156,630.10, 234,945.15 and 109,390.90

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Solution

The fourth proportional to 156,630.10, 234,945.15 and 109,390.90 is: 164,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.10 : 234,945.15 = 109,390.90 : x
  2. Step 2: Convert to fraction form
    156,630.10/234,945.15 = 109,390.90/x
  3. Step 3: Cross multiply
    156,630.10x = 234,945.15 × 109,390.90
  4. Step 4: Simplify right side
    156,630.10x = 25,700,861,409.14
  5. Step 5: Solve for x
    x = 25,700,861,409.14/156,630.10
  6. Step 6: Final answer
    x = 164,086.35

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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.