Home / 156,963.62-235,440.18-68,217.12

Finding the Fourth Proportional to 156,963.62, 235,440.18 and 68,217.12

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Solution

The fourth proportional to 156,963.62, 235,440.18 and 68,217.12 is: 102,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.62 : 235,440.18 = 68,217.12 : x
  2. Step 2: Convert to fraction form
    156,963.62/235,440.18 = 68,217.12/x
  3. Step 3: Cross multiply
    156,963.62x = 235,440.18 × 68,217.12
  4. Step 4: Simplify right side
    156,963.62x = 16,061,051,011.88
  5. Step 5: Solve for x
    x = 16,061,051,011.88/156,963.62
  6. Step 6: Final answer
    x = 102,323.40

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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.