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Finding the Fourth Proportional to 139,455.54, 192,448.67 and 75,793.34

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Solution

The fourth proportional to 139,455.54, 192,448.67 and 75,793.34 is: 104,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,455.54 : 192,448.67 = 75,793.34 : x
  2. Step 2: Convert to fraction form
    139,455.54/192,448.67 = 75,793.34/x
  3. Step 3: Cross multiply
    139,455.54x = 192,448.67 × 75,793.34
  4. Step 4: Simplify right side
    139,455.54x = 14,586,327,477.86
  5. Step 5: Solve for x
    x = 14,586,327,477.86/139,455.54
  6. Step 6: Final answer
    x = 104,594.82

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1.5x scale

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.