Home / 156,319.92-234,512.70-51,130.68

Finding the Fourth Proportional to 156,319.92, 234,512.70 and 51,130.68

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Solution

The fourth proportional to 156,319.92, 234,512.70 and 51,130.68 is: 76,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,319.92 : 234,512.70 = 51,130.68 : x
  2. Step 2: Convert to fraction form
    156,319.92/234,512.70 = 51,130.68/x
  3. Step 3: Cross multiply
    156,319.92x = 234,512.70 × 51,130.68
  4. Step 4: Simplify right side
    156,319.92x = 11,990,793,819.64
  5. Step 5: Solve for x
    x = 11,990,793,819.64/156,319.92
  6. Step 6: Final answer
    x = 76,706.76

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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.