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Finding the Fourth Proportional to 88,732, 122,289.78 and 73,544.68

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Solution

The fourth proportional to 88,732, 122,289.78 and 73,544.68 is: 101,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,732 : 122,289.78 = 73,544.68 : x
  2. Step 2: Convert to fraction form
    88,732/122,289.78 = 73,544.68/x
  3. Step 3: Cross multiply
    88,732x = 122,289.78 × 73,544.68
  4. Step 4: Simplify right side
    88,732x = 8,993,762,737.37
  5. Step 5: Solve for x
    x = 8,993,762,737.37/88,732
  6. Step 6: Final answer
    x = 101,358.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.