Home / 139,739.32-192,777.96-94,402.72

Finding the Fourth Proportional to 139,739.32, 192,777.96 and 94,402.72

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Solution

The fourth proportional to 139,739.32, 192,777.96 and 94,402.72 is: 130,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,739.32 : 192,777.96 = 94,402.72 : x
  2. Step 2: Convert to fraction form
    139,739.32/192,777.96 = 94,402.72/x
  3. Step 3: Cross multiply
    139,739.32x = 192,777.96 × 94,402.72
  4. Step 4: Simplify right side
    139,739.32x = 18,198,763,780.05
  5. Step 5: Solve for x
    x = 18,198,763,780.05/139,739.32
  6. Step 6: Final answer
    x = 130,233.66

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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.