Home / 156,370.82-234,367.56-72,015.53

Finding the Fourth Proportional to 156,370.82, 234,367.56 and 72,015.53

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Solution

The fourth proportional to 156,370.82, 234,367.56 and 72,015.53 is: 107,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,370.82 : 234,367.56 = 72,015.53 : x
  2. Step 2: Convert to fraction form
    156,370.82/234,367.56 = 72,015.53/x
  3. Step 3: Cross multiply
    156,370.82x = 234,367.56 × 72,015.53
  4. Step 4: Simplify right side
    156,370.82x = 16,878,102,876.37
  5. Step 5: Solve for x
    x = 16,878,102,876.37/156,370.82
  6. Step 6: Final answer
    x = 107,936.40

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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.