Home / 156,957.45-235,490.85-68,274.60

Finding the Fourth Proportional to 156,957.45, 235,490.85 and 68,274.60

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Solution

The fourth proportional to 156,957.45, 235,490.85 and 68,274.60 is: 102,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.45 : 235,490.85 = 68,274.60 : x
  2. Step 2: Convert to fraction form
    156,957.45/235,490.85 = 68,274.60/x
  3. Step 3: Cross multiply
    156,957.45x = 235,490.85 × 68,274.60
  4. Step 4: Simplify right side
    156,957.45x = 16,078,043,587.41
  5. Step 5: Solve for x
    x = 16,078,043,587.41/156,957.45
  6. Step 6: Final answer
    x = 102,435.68

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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.