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Finding the Fourth Proportional to 156,360, 234,540 and 68,808

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Solution

The fourth proportional to 156,360, 234,540 and 68,808 is: 103,212

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,360 : 234,540 = 68,808 : x
  2. Step 2: Convert to fraction form
    156,360/234,540 = 68,808/x
  3. Step 3: Cross multiply
    156,360x = 234,540 × 68,808
  4. Step 4: Simplify right side
    156,360x = 16,138,228,320
  5. Step 5: Solve for x
    x = 16,138,228,320/156,360
  6. Step 6: Final answer
    x = 103,212

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.