Home / 117,929.20-176,634.60-71,100.40

Finding the Fourth Proportional to 117,929.20, 176,634.60 and 71,100.40

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Solution

The fourth proportional to 117,929.20, 176,634.60 and 71,100.40 is: 106,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.20 : 176,634.60 = 71,100.40 : x
  2. Step 2: Convert to fraction form
    117,929.20/176,634.60 = 71,100.40/x
  3. Step 3: Cross multiply
    117,929.20x = 176,634.60 × 71,100.40
  4. Step 4: Simplify right side
    117,929.20x = 12,558,790,713.84
  5. Step 5: Solve for x
    x = 12,558,790,713.84/117,929.20
  6. Step 6: Final answer
    x = 106,494.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.