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Finding the Fourth Proportional to 118,225.80, 177,338.70 and 111,227.40

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Solution

The fourth proportional to 118,225.80, 177,338.70 and 111,227.40 is: 166,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,225.80 : 177,338.70 = 111,227.40 : x
  2. Step 2: Convert to fraction form
    118,225.80/177,338.70 = 111,227.40/x
  3. Step 3: Cross multiply
    118,225.80x = 177,338.70 × 111,227.40
  4. Step 4: Simplify right side
    118,225.80x = 19,724,922,520.38
  5. Step 5: Solve for x
    x = 19,724,922,520.38/118,225.80
  6. Step 6: Final answer
    x = 166,841.10

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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.