Home / 156,963.45-235,499.85-68,280.60

Finding the Fourth Proportional to 156,963.45, 235,499.85 and 68,280.60

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Solution

The fourth proportional to 156,963.45, 235,499.85 and 68,280.60 is: 102,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.45 : 235,499.85 = 68,280.60 : x
  2. Step 2: Convert to fraction form
    156,963.45/235,499.85 = 68,280.60/x
  3. Step 3: Cross multiply
    156,963.45x = 235,499.85 × 68,280.60
  4. Step 4: Simplify right side
    156,963.45x = 16,080,071,057.91
  5. Step 5: Solve for x
    x = 16,080,071,057.91/156,963.45
  6. Step 6: Final answer
    x = 102,444.68

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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.