Home / 139,658.53-192,728.82-75,994.96

Finding the Fourth Proportional to 139,658.53, 192,728.82 and 75,994.96

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Solution

The fourth proportional to 139,658.53, 192,728.82 and 75,994.96 is: 104,873.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,658.53 : 192,728.82 = 75,994.96 : x
  2. Step 2: Convert to fraction form
    139,658.53/192,728.82 = 75,994.96/x
  3. Step 3: Cross multiply
    139,658.53x = 192,728.82 × 75,994.96
  4. Step 4: Simplify right side
    139,658.53x = 14,646,418,966.75
  5. Step 5: Solve for x
    x = 14,646,418,966.75/139,658.53
  6. Step 6: Final answer
    x = 104,873.07

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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.