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Finding the Fourth Proportional to 117,572.20, 176,358.30 and 80,247.40

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Solution

The fourth proportional to 117,572.20, 176,358.30 and 80,247.40 is: 120,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,572.20 : 176,358.30 = 80,247.40 : x
  2. Step 2: Convert to fraction form
    117,572.20/176,358.30 = 80,247.40/x
  3. Step 3: Cross multiply
    117,572.20x = 176,358.30 × 80,247.40
  4. Step 4: Simplify right side
    117,572.20x = 14,152,295,043.42
  5. Step 5: Solve for x
    x = 14,152,295,043.42/117,572.20
  6. Step 6: Final answer
    x = 120,371.10

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