Home / 156,621.60-234,932.40-112,662.90

Finding the Fourth Proportional to 156,621.60, 234,932.40 and 112,662.90

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Solution

The fourth proportional to 156,621.60, 234,932.40 and 112,662.90 is: 168,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,621.60 : 234,932.40 = 112,662.90 : x
  2. Step 2: Convert to fraction form
    156,621.60/234,932.40 = 112,662.90/x
  3. Step 3: Cross multiply
    156,621.60x = 234,932.40 × 112,662.90
  4. Step 4: Simplify right side
    156,621.60x = 26,468,165,487.96
  5. Step 5: Solve for x
    x = 26,468,165,487.96/156,621.60
  6. Step 6: Final answer
    x = 168,994.35

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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.