Home / 117,788.60-176,615.76-80,393.94

Finding the Fourth Proportional to 117,788.60, 176,615.76 and 80,393.94

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Solution

The fourth proportional to 117,788.60, 176,615.76 and 80,393.94 is: 120,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,788.60 : 176,615.76 = 80,393.94 : x
  2. Step 2: Convert to fraction form
    117,788.60/176,615.76 = 80,393.94/x
  3. Step 3: Cross multiply
    117,788.60x = 176,615.76 × 80,393.94
  4. Step 4: Simplify right side
    117,788.60x = 14,198,836,812.49
  5. Step 5: Solve for x
    x = 14,198,836,812.49/117,788.60
  6. Step 6: Final answer
    x = 120,545.09

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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.