Home / 156,554.70-234,639.60-72,197.76

Finding the Fourth Proportional to 156,554.70, 234,639.60 and 72,197.76

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Solution

The fourth proportional to 156,554.70, 234,639.60 and 72,197.76 is: 108,207.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,554.70 : 234,639.60 = 72,197.76 : x
  2. Step 2: Convert to fraction form
    156,554.70/234,639.60 = 72,197.76/x
  3. Step 3: Cross multiply
    156,554.70x = 234,639.60 × 72,197.76
  4. Step 4: Simplify right side
    156,554.70x = 16,940,453,527.30
  5. Step 5: Solve for x
    x = 16,940,453,527.30/156,554.70
  6. Step 6: Final answer
    x = 108,207.89

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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.