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Finding the Fourth Proportional to 156,354, 234,531 and 68,802

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Solution

The fourth proportional to 156,354, 234,531 and 68,802 is: 103,203

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,354 : 234,531 = 68,802 : x
  2. Step 2: Convert to fraction form
    156,354/234,531 = 68,802/x
  3. Step 3: Cross multiply
    156,354x = 234,531 × 68,802
  4. Step 4: Simplify right side
    156,354x = 16,136,201,862
  5. Step 5: Solve for x
    x = 16,136,201,862/156,354
  6. Step 6: Final answer
    x = 103,203

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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.