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Finding the Fourth Proportional to 118,078.20, 177,117.30 and 118,078.20

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Solution

The fourth proportional to 118,078.20, 177,117.30 and 118,078.20 is: 177,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,078.20 : 177,117.30 = 118,078.20 : x
  2. Step 2: Convert to fraction form
    118,078.20/177,117.30 = 118,078.20/x
  3. Step 3: Cross multiply
    118,078.20x = 177,117.30 × 118,078.20
  4. Step 4: Simplify right side
    118,078.20x = 20,913,691,972.86
  5. Step 5: Solve for x
    x = 20,913,691,972.86/118,078.20
  6. Step 6: Final answer
    x = 177,117.30

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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.