Home / 139,744.91-192,848.06-76,082.96

Finding the Fourth Proportional to 139,744.91, 192,848.06 and 76,082.96

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Solution

The fourth proportional to 139,744.91, 192,848.06 and 76,082.96 is: 104,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,744.91 : 192,848.06 = 76,082.96 : x
  2. Step 2: Convert to fraction form
    139,744.91/192,848.06 = 76,082.96/x
  3. Step 3: Cross multiply
    139,744.91x = 192,848.06 × 76,082.96
  4. Step 4: Simplify right side
    139,744.91x = 14,672,451,235.06
  5. Step 5: Solve for x
    x = 14,672,451,235.06/139,744.91
  6. Step 6: Final answer
    x = 104,994.53

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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.