Home / 156,956.20-235,563.90-72,845.80

Finding the Fourth Proportional to 156,956.20, 235,563.90 and 72,845.80

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Solution

The fourth proportional to 156,956.20, 235,563.90 and 72,845.80 is: 109,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.20 : 235,563.90 = 72,845.80 : x
  2. Step 2: Convert to fraction form
    156,956.20/235,563.90 = 72,845.80/x
  3. Step 3: Cross multiply
    156,956.20x = 235,563.90 × 72,845.80
  4. Step 4: Simplify right side
    156,956.20x = 17,159,840,746.62
  5. Step 5: Solve for x
    x = 17,159,840,746.62/156,956.20
  6. Step 6: Final answer
    x = 109,328.85

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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.