Home / 156,929.28-235,261.20-68,116.02

Finding the Fourth Proportional to 156,929.28, 235,261.20 and 68,116.02

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Solution

The fourth proportional to 156,929.28, 235,261.20 and 68,116.02 is: 102,116.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,929.28 : 235,261.20 = 68,116.02 : x
  2. Step 2: Convert to fraction form
    156,929.28/235,261.20 = 68,116.02/x
  3. Step 3: Cross multiply
    156,929.28x = 235,261.20 × 68,116.02
  4. Step 4: Simplify right side
    156,929.28x = 16,025,056,604.42
  5. Step 5: Solve for x
    x = 16,025,056,604.42/156,929.28
  6. Step 6: Final answer
    x = 102,116.42

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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.