Home / 139,193.43-192,090.66-75,531.28

Finding the Fourth Proportional to 139,193.43, 192,090.66 and 75,531.28

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Solution

The fourth proportional to 139,193.43, 192,090.66 and 75,531.28 is: 104,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,193.43 : 192,090.66 = 75,531.28 : x
  2. Step 2: Convert to fraction form
    139,193.43/192,090.66 = 75,531.28/x
  3. Step 3: Cross multiply
    139,193.43x = 192,090.66 × 75,531.28
  4. Step 4: Simplify right side
    139,193.43x = 14,508,852,087.74
  5. Step 5: Solve for x
    x = 14,508,852,087.74/139,193.43
  6. Step 6: Final answer
    x = 104,235.18

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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.