Home / 139,664.13-192,740.52-76,005.96

Finding the Fourth Proportional to 139,664.13, 192,740.52 and 76,005.96

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Solution

The fourth proportional to 139,664.13, 192,740.52 and 76,005.96 is: 104,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.13 : 192,740.52 = 76,005.96 : x
  2. Step 2: Convert to fraction form
    139,664.13/192,740.52 = 76,005.96/x
  3. Step 3: Cross multiply
    139,664.13x = 192,740.52 × 76,005.96
  4. Step 4: Simplify right side
    139,664.13x = 14,649,428,253.50
  5. Step 5: Solve for x
    x = 14,649,428,253.50/139,664.13
  6. Step 6: Final answer
    x = 104,890.41

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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.