Home / 156,979.34-235,517.64-54,405.42

Finding the Fourth Proportional to 156,979.34, 235,517.64 and 54,405.42

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Solution

The fourth proportional to 156,979.34, 235,517.64 and 54,405.42 is: 81,624.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.34 : 235,517.64 = 54,405.42 : x
  2. Step 2: Convert to fraction form
    156,979.34/235,517.64 = 54,405.42/x
  3. Step 3: Cross multiply
    156,979.34x = 235,517.64 × 54,405.42
  4. Step 4: Simplify right side
    156,979.34x = 12,813,436,121.61
  5. Step 5: Solve for x
    x = 12,813,436,121.61/156,979.34
  6. Step 6: Final answer
    x = 81,624.98

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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.