Home / 156,630.15-234,781.20-61,823.70

Finding the Fourth Proportional to 156,630.15, 234,781.20 and 61,823.70

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Solution

The fourth proportional to 156,630.15, 234,781.20 and 61,823.70 is: 92,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.15 : 234,781.20 = 61,823.70 : x
  2. Step 2: Convert to fraction form
    156,630.15/234,781.20 = 61,823.70/x
  3. Step 3: Cross multiply
    156,630.15x = 234,781.20 × 61,823.70
  4. Step 4: Simplify right side
    156,630.15x = 14,515,042,474.44
  5. Step 5: Solve for x
    x = 14,515,042,474.44/156,630.15
  6. Step 6: Final answer
    x = 92,670.81

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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.