Home / 156,976.38-235,524.33-72,777.18

Finding the Fourth Proportional to 156,976.38, 235,524.33 and 72,777.18

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Solution

The fourth proportional to 156,976.38, 235,524.33 and 72,777.18 is: 109,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,976.38 : 235,524.33 = 72,777.18 : x
  2. Step 2: Convert to fraction form
    156,976.38/235,524.33 = 72,777.18/x
  3. Step 3: Cross multiply
    156,976.38x = 235,524.33 × 72,777.18
  4. Step 4: Simplify right side
    156,976.38x = 17,140,796,558.79
  5. Step 5: Solve for x
    x = 17,140,796,558.79/156,976.38
  6. Step 6: Final answer
    x = 109,193.48

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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.