Home / 156,734.20-235,230.90-72,623.80

Finding the Fourth Proportional to 156,734.20, 235,230.90 and 72,623.80

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Solution

The fourth proportional to 156,734.20, 235,230.90 and 72,623.80 is: 108,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.20 : 235,230.90 = 72,623.80 : x
  2. Step 2: Convert to fraction form
    156,734.20/235,230.90 = 72,623.80/x
  3. Step 3: Cross multiply
    156,734.20x = 235,230.90 × 72,623.80
  4. Step 4: Simplify right side
    156,734.20x = 17,083,361,835.42
  5. Step 5: Solve for x
    x = 17,083,361,835.42/156,734.20
  6. Step 6: Final answer
    x = 108,995.75

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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.