Home / 139,659.22-192,727.84-75,996.87

Finding the Fourth Proportional to 139,659.22, 192,727.84 and 75,996.87

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Solution

The fourth proportional to 139,659.22, 192,727.84 and 75,996.87 is: 104,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,659.22 : 192,727.84 = 75,996.87 : x
  2. Step 2: Convert to fraction form
    139,659.22/192,727.84 = 75,996.87/x
  3. Step 3: Cross multiply
    139,659.22x = 192,727.84 × 75,996.87
  4. Step 4: Simplify right side
    139,659.22x = 14,646,712,601.86
  5. Step 5: Solve for x
    x = 14,646,712,601.86/139,659.22
  6. Step 6: Final answer
    x = 104,874.66

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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.