Home / 139,300.03-192,234.77-75,637.81

Finding the Fourth Proportional to 139,300.03, 192,234.77 and 75,637.81

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Solution

The fourth proportional to 139,300.03, 192,234.77 and 75,637.81 is: 104,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,300.03 : 192,234.77 = 75,637.81 : x
  2. Step 2: Convert to fraction form
    139,300.03/192,234.77 = 75,637.81/x
  3. Step 3: Cross multiply
    139,300.03x = 192,234.77 × 75,637.81
  4. Step 4: Simplify right side
    139,300.03x = 14,540,217,008.65
  5. Step 5: Solve for x
    x = 14,540,217,008.65/139,300.03
  6. Step 6: Final answer
    x = 104,380.57

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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.