Home / 156,628.15-234,778.20-61,821.70

Finding the Fourth Proportional to 156,628.15, 234,778.20 and 61,821.70

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Solution

The fourth proportional to 156,628.15, 234,778.20 and 61,821.70 is: 92,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.15 : 234,778.20 = 61,821.70 : x
  2. Step 2: Convert to fraction form
    156,628.15/234,778.20 = 61,821.70/x
  3. Step 3: Cross multiply
    156,628.15x = 234,778.20 × 61,821.70
  4. Step 4: Simplify right side
    156,628.15x = 14,514,387,446.94
  5. Step 5: Solve for x
    x = 14,514,387,446.94/156,628.15
  6. Step 6: Final answer
    x = 92,667.81

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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.