Home / 139,768.53-192,874.01-76,106.13

Finding the Fourth Proportional to 139,768.53, 192,874.01 and 76,106.13

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Solution

The fourth proportional to 139,768.53, 192,874.01 and 76,106.13 is: 105,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,768.53 : 192,874.01 = 76,106.13 : x
  2. Step 2: Convert to fraction form
    139,768.53/192,874.01 = 76,106.13/x
  3. Step 3: Cross multiply
    139,768.53x = 192,874.01 × 76,106.13
  4. Step 4: Simplify right side
    139,768.53x = 14,678,894,098.15
  5. Step 5: Solve for x
    x = 14,678,894,098.15/139,768.53
  6. Step 6: Final answer
    x = 105,022.88

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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.