Home / 139,664.88-192,741.03-76,006.17

Finding the Fourth Proportional to 139,664.88, 192,741.03 and 76,006.17

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Solution

The fourth proportional to 139,664.88, 192,741.03 and 76,006.17 is: 104,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,664.88 : 192,741.03 = 76,006.17 : x
  2. Step 2: Convert to fraction form
    139,664.88/192,741.03 = 76,006.17/x
  3. Step 3: Cross multiply
    139,664.88x = 192,741.03 × 76,006.17
  4. Step 4: Simplify right side
    139,664.88x = 14,649,507,492.16
  5. Step 5: Solve for x
    x = 14,649,507,492.16/139,664.88
  6. Step 6: Final answer
    x = 104,890.42

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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.