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Finding the Fourth Proportional to 156,920, 235,380 and 46,112

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Solution

The fourth proportional to 156,920, 235,380 and 46,112 is: 69,168

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,920 : 235,380 = 46,112 : x
  2. Step 2: Convert to fraction form
    156,920/235,380 = 46,112/x
  3. Step 3: Cross multiply
    156,920x = 235,380 × 46,112
  4. Step 4: Simplify right side
    156,920x = 10,853,842,560
  5. Step 5: Solve for x
    x = 10,853,842,560/156,920
  6. Step 6: Final answer
    x = 69,168

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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.