Home / 96,745.20-145,117.80-73,125.60

Finding the Fourth Proportional to 96,745.20, 145,117.80 and 73,125.60

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Solution

The fourth proportional to 96,745.20, 145,117.80 and 73,125.60 is: 109,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,745.20 : 145,117.80 = 73,125.60 : x
  2. Step 2: Convert to fraction form
    96,745.20/145,117.80 = 73,125.60/x
  3. Step 3: Cross multiply
    96,745.20x = 145,117.80 × 73,125.60
  4. Step 4: Simplify right side
    96,745.20x = 10,611,826,195.68
  5. Step 5: Solve for x
    x = 10,611,826,195.68/96,745.20
  6. Step 6: Final answer
    x = 109,688.40

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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.