Home / 139,997.46-193,192.29-76,336.50

Finding the Fourth Proportional to 139,997.46, 193,192.29 and 76,336.50

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Solution

The fourth proportional to 139,997.46, 193,192.29 and 76,336.50 is: 105,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,997.46 : 193,192.29 = 76,336.50 : x
  2. Step 2: Convert to fraction form
    139,997.46/193,192.29 = 76,336.50/x
  3. Step 3: Cross multiply
    139,997.46x = 193,192.29 × 76,336.50
  4. Step 4: Simplify right side
    139,997.46x = 14,747,623,245.59
  5. Step 5: Solve for x
    x = 14,747,623,245.59/139,997.46
  6. Step 6: Final answer
    x = 105,342.08

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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.