Home / 139,192.93-192,089.96-75,530.78

Finding the Fourth Proportional to 139,192.93, 192,089.96 and 75,530.78

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Solution

The fourth proportional to 139,192.93, 192,089.96 and 75,530.78 is: 104,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,192.93 : 192,089.96 = 75,530.78 : x
  2. Step 2: Convert to fraction form
    139,192.93/192,089.96 = 75,530.78/x
  3. Step 3: Cross multiply
    139,192.93x = 192,089.96 × 75,530.78
  4. Step 4: Simplify right side
    139,192.93x = 14,508,703,737.35
  5. Step 5: Solve for x
    x = 14,508,703,737.35/139,192.93
  6. Step 6: Final answer
    x = 104,234.49

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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.