Home / 156,619.40-234,783.30-109,234.40

Finding the Fourth Proportional to 156,619.40, 234,783.30 and 109,234.40

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Solution

The fourth proportional to 156,619.40, 234,783.30 and 109,234.40 is: 163,749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,619.40 : 234,783.30 = 109,234.40 : x
  2. Step 2: Convert to fraction form
    156,619.40/234,783.30 = 109,234.40/x
  3. Step 3: Cross multiply
    156,619.40x = 234,783.30 × 109,234.40
  4. Step 4: Simplify right side
    156,619.40x = 25,646,412,905.52
  5. Step 5: Solve for x
    x = 25,646,412,905.52/156,619.40
  6. Step 6: Final answer
    x = 163,749.91

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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.