Home / 156,917.24-235,243.21-68,103.98

Finding the Fourth Proportional to 156,917.24, 235,243.21 and 68,103.98

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Solution

The fourth proportional to 156,917.24, 235,243.21 and 68,103.98 is: 102,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.24 : 235,243.21 = 68,103.98 : x
  2. Step 2: Convert to fraction form
    156,917.24/235,243.21 = 68,103.98/x
  3. Step 3: Cross multiply
    156,917.24x = 235,243.21 × 68,103.98
  4. Step 4: Simplify right side
    156,917.24x = 16,020,998,868.98
  5. Step 5: Solve for x
    x = 16,020,998,868.98/156,917.24
  6. Step 6: Final answer
    x = 102,098.40

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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.